175results about How to "Restoring the ecological environment" patented technology

The invention discloses a coal mining subsidence area administration method for a loess hilly-gully region. The method comprises the following steps: 1, measuring the width of a crack opening; 2, determining a crack administration scheme, wherein the crack administration scheme is an on-site filling method or a combined crack filling and micro-slope reconstruction administration method; 3, performing crack administration, wherein a crack to be administrated is filled with a soil body when the on-site filling method is adopted; the combined crack filling and micro-slope reconstruction administration method for administration comprises the following steps: 301, measuring an inclination angle of the crack; 302, judging an inclination angle value of the crack; 303, performing cross slope crack administration; 304, along-slope crack administration; 4, repeating step 1 to step 3 for many times until all subsided cracks in a loess slope of a coal mining subsidence area are administrated. The steps are simple, the method is reasonable in design, convenient to implement and construct and shorter in construction cycle, and has good administration effects, and the coal mining subsidence area of the loess hilly-gully region can be effectively administrated.

A dynamic carbon and static carbon mutual conversion method includes: planting rank vegetations, and repeatedly cutting and storing to convert 'dynamic carbon' in the atmosphere into 'static carbon' in the biosphere; controlling biomass oxidation quantity to balance the total quantity of 'dynamic carbon' in the atmosphere; intervening soil wind erosion, rock weathering, monsoon circulation and ocean current distribution regularities to restrain 'static carbon' in the biosphere, the hydrosphere and the lithosphere from transferring into the atmosphere; increasing biomass in coastal wetlands, continental shelf shallow areas, rivers and lakes to promote 'static carbon' in the hydrosphere to transfer into the lithosphere; replacing fossil fuels with clean energy to reduce incremental quantityof 'dynamic carbon' in the atmosphere; developing new climate economy to increase bio-carbon products and increase storage of 'static carbon' in the biosphere; clearing 'dynamic carbon' in the atmosphere according to physical and chemical methods so as to regulate the greenhouse effect, eliminate dust haze, slow down global climate change speed and prolong survival time of human on the earth.

The invention relates to a cultural method for paracoccus denitrificans and application of the same to purifying aquaculture water, and belongs to the technical field of aquaculture. Various low-value materials such as molasses and waste liquid of monosodium glutamate and production waste which are harmless for aquaculture organisms and the paracoccus denitrificans are used as raw materials, the raw materials are reasonably compounded into liquid culture media, paracoccus denitrifican liquid with high activity and high concentration is produced, the liquid is directly fed into the aquaculture water, an ecological environment of the aquaculture water is repaired, and an excellent water environment beneficial to survival and growth is created for the aquaculture organisms. The culture method and the application have the advantages that the paracoccus denitrificans become effective fast after being used, an inorganic nitrogen removal form and the removal speed can be selected according to an oxygen dissolving condition of the water, contents of harmful substances such as ammonia nitrogen, nitrite and nitrate in the water are remarkably reduced, the quality of the water environment and a survival condition for the aquaculture organisms are improved, the yield of the aquaculture organisms is increased, and the quality of the aquaculture organisms is improved.

The invention discloses a bacterial strain capable of rapidly degrading nitrogen in sewage, and applications of the bacterial strain, belonging to the technical field of environment engineering. According to the invention, paracoccus denitrificans DYTN-1 capable of rapidly degrading nitrogen in sewage can be obtained through screening, the inorganic nitrogen component harmful to cultured organisms in a water environment can be controlled by the bacterial strain, and the ecological environment of a cultured water body can be rapidly restored, thus creating a good water body environment for aquacultured organisms. The paracoccus denitrificans DYTN-1 can be directly applied to nitrogen removal by denitrification for nitrate-containing nitrogen waste water, and can also be applied to nitrogen removal of ammonia-nitrogen-containing waste water, thus being a bacterium with a heterotrophic nitrification-aerobic denitrification function. After the bacterium is invested and used, the starting time of the system can be shortened, and the paracoccus denitrificans DYTN-1 has wide application prospects in various waste water nitrogen removal treatment processes, and is especially suitable for biological nitrogen removal technology of synchronized nitrification and denitrification.

The invention discloses a loess hilly-and-gully area coal-mining subsidence and crevice treatment method. Subsidences and crevices exist in loess hilly-and-gully areas can be treated by the filling method of stripping by segments and staggered refilling, and the filling structure in the subsidences and crevices are divided into a bedding layer, a raw soil layer and a surface soil layer form bottom to top. The treatment processes of the subsidences and crevices include: 1, dividing treatment segments, namely dividing the crevices to be treated into a plurality of treatment segments from front to rear along the vertical extending direction; 2, stripping by segments and refilling in a staggered manner, namely treating the treatment segments respectively from front to rear till treatment on all treatment segments is completed. The method is simple in processes, reasonable in design, convenient to implement and good in treatment effect, and the problems that according to an existing subsidence and crevice filling method, crevices re-appear after filling, crevice treatment effect is poor and the like can be solved effectively.

The invention discloses a method for restoring a degraded riparian zone through imitated vegetation. The method comprises the steps that biological materials are used for imitating roots, stems and leaves of vegetation, and the imitated vegetation is obtained and prepared from polyolefin materials; the stems are partially and vertically inserted into soil, the imitated leaves are fixed to the tops of the stems, the imitated vegetation is formed, the stems are hollow, the surfaces of the stems are provided with a large number of small breathable holes, the oxygen content of soil is increased, an aerobic environment is provided for microorganisms, pollutants are purified, a small cover is arranged above the small breathable holes to prevent rainwater and soil from entering the small breathable holes, and blockage is avoided. The method has the advantages that pollutants diffused to rivers are reduced, and the ecological environment of the riparian zone is restored; water and soil are preserved, bank fixation and slope protection are achieved, and water and soil loss is prevented; the method is not affected by seasons, time and plant production periods and wide in application range; the soil of the riparian zone which is unsuitable for vegetation growth and seriously polluted is restored, and therefore ecological restoration can be conveniently carried out on follow-up planted vegetation. The imitated vegetation is low in cost, easy to manufacture and convenient to install and has an aesthetic value.

A desert dry and semi-dry turf transplantation and re-laying method suitable for roadbed construction is that turf transplantation is performed before roadbed earthwork construction, turf re-laying is performed after the roadbed earthwork construction, and finally turf maintenance is performed. The turf transplantation step further includes turf selection, turf excavation, moving and flat laying, temporary planting and watering fertilization operations, and after earthwork activities and infrastructure are finished, the turf re-laying step further includes re-laying face leveling, temporary planted turf transportation, re-laying face fertilization watering and fertilization turf joint filling operations. The final turf maintenance step includes grazing prohibition, enclosure and insect and disease prevention. Soil seed bank resources existing in an original turf are fully utilized, the turf survival rate is high, the regeneration capacity is good, the construction speed can be improved, a construction period can be shortened, an ecological environment in a construction region can be quickly recovered, and resources are saved. The desert dry and semi-dry turf transplantation and re-laying method is simple and convenient to operate, low in maintenance cost and remarkable in revegetation restoration effect, can obtain high biological diversity and landscape naturalness, has very high cost performance and is beneficial for popularization and application.

The invention discloses a high-efficiency ecological breeding method for South American white shrimps. The high-efficiency ecological breeding method includes the steps such as breeding greenhouse building, offspring seed selection, stocking preparation, breeding management, water quality management. The technology is advanced and applicable; operability is strong; and breeding risk of South American white shrimps is reduced. Disease incidence is reduced. Dissolved oxygen of varied water layers in greenhouses is improved; condition of bottom layer water is improved; improvement in appetites of the South American white shrimps is benefited; and digestibility and utilization rate of feeds are increased.

The invention relates to a bank-protecting and pollutant-cleansing combined type ecological building block and construction method. The ecological building block provided by the invention is formed by casting sand-free concrete, and has a bottom face and two standing faces; the overall ecological building block is tse(a cyrillic alphabet)-shaped; a side concave groove is arranged at one side of the bottom face, and a side bulging part capable of being chelated in relative to the side concave groove is arranged at a same position at the other side of the bottom face, corresponding to the side concave groove; and a concave groove is arranged at the bottom of a lower bottom face of one standing face, and a bulging part corresponding to the concave groove is arranged at the top of the other standing face of a same ecological building block and can be chelated with the concave groove. The invention overcomes the defects of collapse caused by small size of individual bank-protecting ecological building blocks, and easy loss of soils and plants as well as original soil bodies of rivers and lakes, and the like. The bank-protecting and pollutant-cleansing combined type ecological building block can resist impacts of water waves, prevent flood, and maintain water and soil stable, is not prone to cause the phenomenon of collapse on the bank, can be used for plant planting and cleansing of the pollutants from the bank, can be prefabricated in batch by a factory and has the advantages of low fabrication cost, simplicity for assembly in construction, and great time-saving performance for construction.

The invention discloses a biological filter and a design method thereof. Through a planting soil layer, a filling layer and a gravel drainage layer, sewage can be subjected to multistage filtering and then is introduced into an overflow well through a perforated drain pipe. By employing the biological filter, runoff pollution of urban roads can be reduced, reclamation of rainwater can be achieved, the urban ecological environment can be restored, and rainwater utilization engineering of construction zones and urban roads can be safe, reliable, economical and applicable, and can be advanced in technology.

The invention discloses a method for preparing macadimia nut green-peel extractum and lotion, and belongs to preparation of plant extract and lotion. The method comprises the steps of: crushing fresh macadimia nut green peel and leaching effective components by an ethanol solvent after rinsing, carrying out rotary evaporation concentration until the extractum with a required concentration is obtained after being degreased by petroleum ether, and then preparing macadimia nut green-peel lotion by using humectants, bacteriostatic agent, essence, deionized water and the like according to a commonmethod. The lotion disclosed by the invention contains effective components of arbutin, hilicid and the like; the physical state of the lotion forms translucent gelatinous liquid; the color and the luster are little faint yellow; the lotion has good sleeping and moisturizing actions, and a way is provided for resource utilization of the macadimia nut green peel.

The invention relates to the technical field of municipal engineering, in particular to a seepage and drainage pipe channel, specifically to a seepage and drainage pipe channel system for comprehensive utilization of rainwater. The seepage and drainage pipe channel system is suitable for new and reconstructed rainwater pipe networks of areas, wherein soils of the areas have a certain water seepage capacity; the seepage and drainage pipe channel system has integrated functions of rainwater collection, detention storage, purification, delivery, infiltration and discharge, can protect the land resources, reduce the peak flow, delay the occurrence of flood peak, implement the deep filtration and purification of rainwater, supplement the groundwater, and improve the soil moisture and air humidity, while the system overcomes the shortcomings of an existing rainwater drainage system fundamentally, fully reflects the concept of low-impact development, maintains the natural hydrological cycle, and repairs the ecological environment.

The invention discloses a biomass carbon storage product preparation, metering, sealing and carbon trading method. The method comprises steps: (1) the biomass is smashed, dried, compressed and formed, and a carbon storage product is obtained; (2) the organic carbon content, the weight, the volume, the density, the mass moisture content and the like of the carbon storage product are detected; (3) the carbon storage product after being metered is sealed; and (4) the sealed carbon product participates in global carbon trading. A physical goods capable of being accurately metered is adopted for carbon trading, and a standard and a method of accurately metering the carbon trading are built. What is firstly pointed out is that the product participating in carbon trading needs to have stable quality, and the product is a static carbon product whose carbon is in a non-cyclical state, and a dynamic carbon product capable of releasing CO2 to the air does not participate in carbon trading. A new way of using plant photosynthesis and the energy transfer process to separate, store and control the CO2 content in the atmosphere circle, realizing negative growth of CO2 in the atmosphere and regulating greenhouse effects is established by people.

The invention belongs to the field of ecological repairing of water environments in lake basins and particularly relates to a river channel structure capable of ecologically repairing a river flowing into a lake in lake basins. The river channel structure comprises a river channel base, a river channel bank slope and river channel buffering belts. A layer of vegetation form ecological blanket is laid on the river channel base. Aquatic plants are planted on a river channel bank slope. The river channel bank slope comprises a river channel revetment and a river channel land area side bank, wherein the river channel revetment is a step type revetment and sequentially comprises a first-step ecological embankment, a second-step ecological embankment, a third-step ecological embankment, a fourth-step ecological embankment and a fifth-step ecological embankment from bottom to top. Terrestrial plants and herbaceous plants which are reasonably matched are planted on the river channel buffering belts, and the river channel buffering belts include the first buffering belt, the second buffering belt and the third buffering belt. The river channel structure is simple in structure and low in construction cost, the ecological environment of the river flowing into the lake in the lake basins can be repaired, the water quality of the river is improved, the ecological system of the river is recovered, and the self-cleaning capability of the river is improved.

The invention discloses a releasing method for porphyra haitanensis seedlings. The method includes drying lobate bodies of the porphyra haitanensis in the shade, preparing into carpospores liquid, performing inoculation into shells, growing naturally into shell filaments, and performing cultivation to a mature-stage shell filaments; and placing the mature-stage shell filaments in stone marsh in an intertidal zone with a water depth of 10-20cm after the ebb tide and in reefs in the intertidal zone one hour before the flood tide for natural release, performing broadcast sowing on the mature-stage shell filaments in a neritic region for the natural release, and suspending the mature-stage shell filaments in a mesh bag on the lower portion of a positioned float in an abyssal region for the natural release, wherein the neritic region refers to an ocean area with a water depth of 6-10m after the ebb tide, the abyssal region refers to an ocean area with a water depth larger than10m after the ebb tide, the lower portion of the positioned float is submerged for 0.5-1.5m under the water level, and the natural release continues for 2-3 years. According to the method, the germplasm of the porphyra haitanensis can be improved, natural resources of the porphyra haitanensis can be recovered, and ecological environment of the seaweed can be restored.

The invention belongs to the technical field of fishery and relates to a cultivation method of a sea bass fingerling holding pond. The method is characterized by including the steps of 1, pretreating the holding pond; 2, catching natural bass fingerlings 1-2cm long, from a northern sea area, performing desalting to 4-7%. of salinity 4-7%, putting the bass fingerlings in the holding pond, controlling stocking density of the holding pond to be 1-1.5 fingerlings per mu, and filling the holding pond with water frequently for oxygen increasing; 3, feeding the fingerlings with plankton from the second day of entry, and feeding the fingerlings with the plankton and fingerling feed from the third day; 4, feeding the fingerlings with the fingerling feed once a day, with 1-2g of the fingerling feed per 10-20kg of fingerlings, and putting the fishes growing to 4-6cm long into a large pond for thin cultivation, 20-30 days after cultivation. The method has the advantages that the holding pond is pretreated to improve water quality, ecological environment of cultivation water is quick remedied, diseases and sudden death of the fingerlings are effectively prevented, and the use of fish feed with fish disease control and treatment functions in feeding the fishes leads to further increase in survival rate, yield and quality of the bass fingerlings.

The invention provides a urban road greenbelt LID (low impact development) bioretention trough construction method. The construction method sequentially comprises the following steps: excavating grooves and pits; installing a plastic product inspection well and a municipal pipe network connecting pipe; implementing concrete trench wall construction; paving sand on a basement; paving an impermeable membrane; paving and adding a pebble bed; installing an HDPE (high-density polyethylene) perforated pipe and filling the perforated pipe with pebbles; paving and illuminating a permeable geotextile on lower layer; adding and paving a sand filter bed; paving and illuminating a permeable geotextile on upper layer; installing curbs at two sides; implementing back-filling with a planting soil layer; installing rainwater grates and well coves and implementing construction of a gravel block belt; planting plants; and implementing cleaning as well as acceptance and inspection. According to the construction method provided by the invention, a conventional drainage mode, adopted by urban roads, of direct discharging at a source and centralizing at an end, is changed, and a problem on drainage is solved; meanwhile, by planting the rainwater-cultivated plants in the bioretention trough in normal times, rainwater is utilized; and a urban heat island effect is solved and effects of lighting urban and beautifying environment are achieved.

The invention discloses a method for treating eutrophic lake cyanobacterial bloom. An enclosure parallel to the local prevailing wind direction is built to block water flow exchange, and large lake cyanobacteria are prevented from entering a control water area. By means of the characteristic that the cyanobacteria floating on the surface layer move with prevailing wind as main drive force, blocking is carried out, the cyanobacteria are guided to the down-wind lakeshore in the direction of the enclosure, and a cyanobacterium enrichment area is formed. A cyanobacterium removal facility is arranged in the cyanobacterium enrichment area, and the cyanobacteria are removed in a large area with high strength. A drainage facilitate with the water flow direction consistent with the prevailing wind direction is arranged, reclaimed water or clean water is drained to enter the control water area to replace contaminated water, and meanwhile water power is enhanced. A water layer mixing facility is arranged in the water area with low water power, the upper water layer and the lower water layer are disturbed, water flow circulation in the transverse direction and the longitudinal direction is generated to the water, the still water environment needed for accumulation of the cyanobacteria is damaged, and the aims of controlling and restraining the cyanobacteria are achieved. According to the method, the cyanobacterial bloom breakout intensity can be effectively controlled, the ecological environment of the nearshore water area is restored, and the water environment quality and the area landscape effect are remarkably improved.

The invention belongs to the technical field of prevention and control on rats, and particularly discloses a long-term prevention and control method for rats in Tibet grassland. A double net built by a utilizing a ratproof net and a fence is adopted, a technology for prevention and control on main rats, i.e. Ochotona curzoniae, in the Tibet grassland by a first generation anticoagulation rodenticide is firstly adopted in the fence, and over 90 percent of the rats can be killed. By matching with the deratization function of a poison bait station and the ratproof function of the ratproof net, the purpose of long-term prevention and control for the rats in the Tibet grassland can be achieved. After medical prevention and control on the Ochotona curzoniae is performed for the first time, the corrected deratization rate reaches over 90 percent, and the working concentration and usage amount of raticides are greatly reduced. The method is characterized in that the rats can be controlled for a long term, the raticides do not need to be used widely each year, in the middle ten days of July of the next year, the vegetation coverage in the fence subjected to grazing prohibition can be increased by over 29 percent, and the vegetation height is over 30cm, grass can be mowed to serve as forage grass for livestock in winter, and the ecological balance of the Tibet grassland can gradually get well; the method is simple, convenient, easy to understand and suitable for long-term control on the rats in the Tibet grassland.

The invention relates to a high-yield culture method for red pomelo. The high-yield culture method comprises the steps of land selection, land preparation, grafting, field planting, nursery stock management, pruning, blossoming and fruit-yielding period management, field management and pest control and prevention. By adopting the method, income increase can be promoted, the fruit quality can be ensured, the objective economic benefit is created, the yield and income are increased for farmers, and a basis is laid for sustainable development.

The invention relates to a method for mixed culturing of swimming crabs and palaemon carinicauda. The method belongs to the technical field of fishery industry and is characterized by comprising the following steps of (1) clearing up a pond; (3) putting swimming crab seedlings in mid-to-end of May, selecting III-period baby crabs cultivated in a soil pool, putting 1-1.5kg per mu, in the end of June, putting 1-2kg of lively-swimming egg-carried shrimps per mu, and planting submerged plant water caltrop in the bottom part of the pond for improving water quality; (4) replacing 70-80 percent of water at every 5-7 days, sterilizing in time after water replacement, and putting water quality modifying agent for one time at the second day; (5) feeding crab and shrimp mixed feed, and then feeding according to the conventional mixed culturing method of the swimming crabs and palaemon carinicauda. According to the method for the mixed culturing of the swimming crabs and the palaemon carinicauda, the nutrition is balanced, the daily demands of the swimming crabs and palaemon carinicauda can be met, the feed efficiency is high, the survival rate of the swimming crabs and palaemon carinicauda is high, the ponderal growth is quick, the immunity of crab bodies can be remarkably enhanced, and the capabilities of antibiosis and antiviral of the crab bodies are improved.

The invention relates to a screening method for replacing surface soil of strip mine reclamation and belongs to the technical field of land reclamation and ecological reconstruction and the field of ecological environment materials. The screening method includes the steps that according to detailed geological and occurrence conditions of a stripped overburden rock-soil layer of a strip mine, firstly, the possible soil layers for replacing surface soil are screened out primarily through analyzing geology and rock-soil parameters of all overburden rock-soil layers; then, through analyzing physical, chemical, biological and environmental characteristics of all the soil layers, the soil layer is finally screened out, wherein the soil layer is close to the surface soil in characteristic, the basic soil properties are good, the rate of emergence is high, then a soil conditioner is selected to be mixed with the material for replacing the surface soil to serve as replacing surface soil. According to the replacing surface soil, solid waste treating and strip mine waste dump reclamation can be organically combined, the dual purposes of reducing solid waste and finishing waste dump reclamation are achieved, the solid waste is effectively utilized, the ecological environment is improved, and social, economical and environmental benefits are high.

The invention relates to a complex inoculant preventing and treating verticillium dahliea wilt on a tomato, and a preparation method and an application of the complex inoculant. The complex inoculant is formed by mixing a fermentation product of bacillus amyloliquefaciens MES812, a fermentation product of bacillus subtilis MES810 and a fermentation product of bacillus mucilaginosus MES803 at a volume ratio of 1:(1-3):(1-5). The preparation method of a strain in the complex inoculant comprises the following steps of strain activation, primary seed solution preparation, secondary seed solution preparation, fermentation tank fermentation and discharge to form the fermentation product. Major microorganisms in the complex inoculant are reproduced extensively in soil to antagonize growth of pathogenic bacteria; harmful microorganisms in the soil are effectively inhibited or killed; a powerful environment is provided for reproduction and growth of beneficial microorganisms; and the occurrence of the verticillium dahliea wilt on the tomato is prevented and controlled effectively by continuous formation of metabolic products of the beneficial microorganisms. At the same time, the soil is improved, the soil fertility is improved, and the output and quality of the tomato are improved.

The invention discloses an organic bacterial manure for lead zinc ore contaminated soil remediation and a preparation method of the organic bacterial manure. The organic bacterial manure for lead zinc ore contaminated soil remediation is prepared from 1-5 parts by weight of basic nutrient solution, 20-25 parts by weight of remitting composite organic raw materials, 70-75 parts by weight of water-retaining medium and 3-5 parts by weight of lead / zinc-resisting composite microbial agent; the preparation method of the organic bacterial manure comprises the steps of mixing and fermenting. The organic bacterial manure for lead zinc ore contaminated soil remediation has the effects of retaining water, improving soil and raising the soil fertility; in addition, the toxicity of the lead and zinc elements in the plant rhizosphere soil can be effectively remitted, the efficacy of the organic fertilizer is improved and the restoration capacity of the plants is enhanced.

The invention discloses a planting method for roselle. The planting method for the roselle comprises the following steps: A, non-toxic treatment of land: turning the soil once, air-drying for two months, uniformly spraying enzyme liquid, and covering by using fresh weeds without roots until the Insects Awaken of the next year; B, cutting: cutting within seven days in the Insects Awaken and after the Insects Awaken, covering the roots again by using the weeds only without watering during the cutting; C, field management: cutting the weeds of which the height exceeds 250 mm and the roots are kept every month, and covering the roots of the plants and the inter-ridge again by using the cut weeds; and D, harvesting: harvesting mature fruits after the Autumnal Equinox, and picking all fruits until the Slight Snow, comprising the immaturate fruits; cutting the weeds and keeping the roots once every four months in the next year; and irrigating once in the special dry weather. The planting method for the roselle is capable of solving the problems that there are varieties of the planting agriculture fertilizers for the roselle currently, and the quality is poor.

The invention relates to a method for governing black and odorous water body and sediment. The method comprises the following four steps of performing first-stage treatment: enabling an aeration oxygen filling device to be arranged in a first-stage treatment unit; performing second-stage treatment: enabling a filling device to be arranged at the bottom of a second-stage treatment unit, enabling a current generator to be arranged at the upper part of the filling device, and adding microorganisms into the water body; performing third-stage treatment: enabling the watercourse water body to enter a natural depression area, and through gravity sedimentation, performing sedimentation on falling-off aerobic mud after the second-stage treatment is performed; and performing fourth-stage treatment: enabling an aeration oxygen filling device to be arranged in the fourth-stage treatment unit, and adding aerobic bacteria and alga in the water body. Through the adoption of the method for governing the black and the odorous water body and sediment disclosed by the invention, the water body is purified, the problem of water body pollution is controlled, and the sediment is governed to a certain extent; key effects of repairing the local ecological environment and rebuilding ecological balance are achieved; and the governing manner is harmless, and secondary pollution and destroy to the environment cannot be generated, so that the purpose that the water body ecology is restored is finally realized.

The invention discloses an abandoned mine pit development restoration pattern and an evaluation method, and relates to the technical field of ecological restoration. The restoration pattern includes the following steps of conducting observation and mapping on the landform of a mine pit; conducting dimension calculation; carrying out slope cutting treatment; conducting cleaning and reinforcement; arranging breast boards; conducting soil dressing and spraying; forming drainage grooves; spraying plant seeds; conducting recording and maintenance. By carrying out millisecond blasting on a slope surface to form a step-type slope surface, then planting grooves are formed, and stone material backfilling is carried out on the bottom surface of the mine pit to enhance the soil preservation capability of the bottom surface of the mine pit and the slope surface; the survival rate of plants can be effectively increased, the landform of a mine is changed, and the economic benefit of the mine pit isincreased.

The invention relates to the field of environmental treatment, and concretely relates to a coal mining subsidence area treatment method and a water pollution control system. The problem of unsatisfactory treatment effect of existing coal mining subsidence areas is solved. The method comprises the following steps: graded and classified treatment mode of a coal mining subsidence area, water system construction for water system combing, ecological restoration, and a mode of combining with landscape nodes and utilizing indoor and outdoor science popularization modes to realize interactive and participatory science popularization, propaganda and education functions. The subsidence area is provided with a diversion canal, a sedimentation tank, a water distribution channel, a surface wetland, a subsurface wetland, a clear water pool and a water outlet. The method has the ecological environment for effectively repairing the coal mining subsidence area, brings economic, social and cultural values for the development of the city where the subsidence area is located through the comprehensive treatment of the subsidence area field and the reuse of the subsidence area, and becomes a new templetfor the treatment of domestic coal mining subsidence area.

The invention relates to the technical field of municipal engineering, in particular to a rainwater comprehensive utilization system which is used for collecting, storing, seeping and draining rainwater integrally. A silica sand water filtering ditch, a setting sand distributing pond, a purifying and storage pond and an infiltration well are sequentially connected to one another through a pipeline; and the infiltration well is connected to drained water through a pipeline. The rainwater comprehensive utilization system has comprehensive functions of rainwater collecting and filtering, purifying and storing, oxygen supplying and quality guaranteeing, infiltration and supplementing, overflowing draining, storage adjustment and recycling; land resources can be protected; peak discharge is reduced; flood peak time is delayed; rainwater is filtered and purified thoroughly; the rainwater comprehensive utilization system is used for greening a city, flushing a road and supplementing underground water; the moisture content and the air humidity of soil are increased; natural hydrological cycle is maintained; and an ecological environment is repaired.