96 results about "Canal system" patented technology

The invention discloses a water management informatization structure system of an irrigation district, which comprises irrigation district identification, information monitoring, information transmission, building control and a scheduling decision module. The irrigation district identification is used for identifying an irrigation district canal system, buildings, management mechanisms and water users; the information monitoring is used for acquiring and outputting irrigation district information; the information transmission is used for transmitting the information to the scheduling decision module in time and transmits water demand information to the building control through the scheduling decision module; the building control is used for dynamically scheduling gates and pumping stations of the irrigation district; and the scheduling decision module is used for providing a decision basis and a decision plan for an irrigation district administrator and controlling the water consumption of the irrigation district. According to the actual condition of the water management informatization of the irrigation district, the invention constructs the water management informatization structure system of the irrigation district, which conforms to reality by a method of the attribute classification of information technology. The water management informatization structure system of the irrigation district has the advantages of no repetition and intersection, easy understanding and prominent water management informatization of the irrigation district.

Systems and methods provide for automated, cyclic delivery and evacuation of a treatment or irrigation solution from a tooth root pulp chamber and pulp canals. A manifold has a base member sized and configured to rest on a crown of an instrumented tooth and a top member sized and configured to couple with the base member to define an inlet chamber and an outlet chamber. The distal end of a needle is passed through an opening between the inlet and outlet chambers and extended distally beyond the base member into a pulp canal. The proximal end of the needle includes an opening in fluid communication with the inlet chamber. A solution is transferred from a fluid supply source to the inlet chamber and through the needle into the pulp chamber and pulp canals. The spent solution is evacuated from the pulp chamber and pulp canals through the outlet chamber.

A high-simulation laparoscopic surgery simulated training device comprises a simulated human abdomen unit, an animal liver and a simulated canal system, wherein the simulated human abdomen unit is used for simulating the human abdomen skin through silica gel and composed of anterior abdominal wall skin and back skin which can be separated from each other, the anterior abdominal wall skin and the back skin are connected through sealing buckles, and thus the seal performance of the whole simulated human abdomen is guaranteed; the animal liver is arranged in the simulated human abdomen unit; the simulated canal system is arranged in the simulated human abdomen unit and connected with the animal liver. According to the high-simulation laparoscopic surgery simulated training device, the abdominal skin is simulated through sealing silica gel, inflation is performed through a poking clip to form the pneumoperitoneum, the human blood circulation in the physiological state is achieved through a pumping set, the real animal liver is anastomosed with the postcava, the portal vein, the hepatic artery and the biliary tract of a human simulator training system through the postcava, the portal vein, the hepatic artery and the biliary tract, and thus various simple or complex laparoscopic surgery training items can be carried out.

The invention discloses a greenhouse pepper planting method which includes the following planting steps: a. conducting soil selection; b. reserving growth holes in the middle of the upper surface of a soil lock, conducting arrangement to form a seedbed 1m in width and forming a canal system on the periphery of the seedbed; c. enabling a plastic film to cover the top of a seedling growing greenhouse, and whitening the seedling growing soil block in an airing mode for standby application; d. conducting seed soaking in the method that seeds are soaked for 10 minutes under the temperature of 55-58 DEG C; e. pouring water to the soil block completely before seed sowing, directly sowing the seeds in the shallow holes in the soil block with 1-2 seeds in each hole, then watering, utilizing dry fine soil 0.5cm in thickness to cover the seeds, utilizing a sunshade net or straws to cover the surface of the seedling growing soil block and adding a sunshade net; f. removing a seedbed covering object at nightfall after 6-8 days when seedlings emerge; g. conducting flower bud differentiation period and flowering fruiting period management after the seedlings emerge. By means of the planting method, the transplanting times in the pepper planting process are reduced, plant diseases and insect pests are reduced, the three-dropping problem is solved, the pepper yield is increased, and the economical benefit of farmers is increase.

The invention discloses an agricultural land initial stage runoff collection irrigation system and a method thereof. The agricultural land initial stage runoff collection irrigation system comprises a drainage canal, a diversion canal, a drainage canal flow blocking weir, an initial stage runoff sensor, an electric water collection valve, a water collection tank, a lift pump, an agricultural irrigation pipeline and farmland irrigation spray nozzles. Square non-flush-period drainage exits are dug in the drainage canal flow blocking weir, and the electric water collection valve controlled by the initial stage runoff sensor is arranged on the diversion canal and is used for collecting initial stage runoff for daily farming irrigation. The agricultural land initial stage runoff collection irrigation system and the method thereof start from the perspective of reducing the pollution of agricultural initial stage runoff with high nitrogen and phosphorus load to water and utilizing agricultural crops to absorb the nitrogen and phosphorus load, an original canal system is utilized, the functions of collecting the initial stage runoff and ensuring smooth drainage of rainfall are achieved, and meanwhile the water resources are used for non-flush-period farmland irrigation. According to the agricultural land initial stage runoff collection irrigation system and the method thereof, the structure is simple, the implementation is easy, and flexible application can be achieved according to existing conditions of an application place.

A northeast region paddy field classification and information extraction system and a method are disclosed. The system comprises four portions of data preparation, paddy field classification, attribute addition and paddy field extraction. According to northeast-region cultivated land utilization realities, the paddy fields are divided into a ''well irrigation paddy field'' and a ''canal irrigation paddy field''. The well irrigation paddy field is the paddy field which is irrigated by underground water pumped through using a motor-pumped well. The 'canal irrigation paddy field is the paddy field which is irrigated by water sources of a canal system irrigation channel, a lake, a river, a reservoir, a pond and the like. Through a land, by using a current state data, a high-resolution remote sensing image, land reclamation data and other data, according to a canal system distribution state, classification and extraction of the 'well irrigation paddy field and the canal irrigation paddy field are realized through visual interpretation. Generally speaking, the paddy field in an irrigated area is the canal irrigation paddy field and the canal irrigation paddy field has relatively complete channel systems of a main canal, a branch canal, a lateral canal, a sublateral canal and the like; a canal system of a well irrigation paddy field area is simple and does not form a system; a surrounding electro-mechanical well is radiated outwardly; the channel is narrow; and a northeast region well irrigation paddy field area generally has a sunning water pool with a large area.

The invention discloses a canal system gate intelligent control method and device. The method specifically includes collecting water level, flow and gate signals, and communicating with a control module in a wireless transmission mode and a wired mode, the water level signals including a before-gate water level signal, a behind-gate water level signal and a midstream water level signal, and the flow signal being an behind-gate flow signal; and an intelligent control module processes a water level, flow and gate opening relation according to the intelligent control method based on a fuzzy neural network and feedforward control, and outputs a gate opening control signal to control the gate opening. The canal system gate intelligent control device provided by the invention is adopted to be combined with the control method to realize control of the canal system gate and water level flow, thereby meeting irrigation area water demand.

The invention provides a real-time dynamic monitoring system of a remote irrigation and drainage system based on internet. The system comprises a data collection unit which comprises a meteorologicalfactors module, a canal system water level-flow module, a field soil moisture content module, an underground water level module and a drainage flow module arranged in the field, wherein the data collection unit is used for acquiring parameters required by the irrigation and drainage system; a storage system comprises a remote receiving terminal, a cloud storage module and a data visual analysis module; a model system automatically acquires the required parameters through a cloud platform in a cloud storage module, and performs data processing, wherein the model system comprises a parameter calibration and inversion module, a crop water need prediction model, an irrigation system optimization model, an irrigation area water balance computation module and a water usage management module. Theremote, intelligence and high efficiency of the irrigation area and basin water resource monitoring technology are realized by utilizing the modern information technology, the technical support is provided for the hydraulic engineering modern construction and water resource intelligent management, and the modern management level and the water resource utilization efficiency of the irrigation areacan be improved.

The invention discloses an irrigated area canal system surveying method based on GPS (Global Position System) positioning. The irrigated area canal system surveying method comprises the following steps: selecting a surveying object; surveying along a pre-set canal to be surveyed through handheld surveying equipment to obtain position information and images of a plurality of key positions; introducing position information of the plurality of key positions into drawing software, and revising the position information of the plurality of key positions according to a surface feature image of a remote sensing picture; and generating an electronic map of a surveyed object according to the revised position information of the plurality of key positions and the images of the plurality of key positions. The surveying method has the advantages of low cost, simplicity and feasibility, and rapidness and convenience, has strong applicability and meets the requirements of usability and convenience. The embodiment of the invention further discloses an irrigated area canal system surveying system based on the GPS positioning.

The invention discloses a water-saving ecological sluice in an irrigation area. The sluice comprises a door frame, a top beam above the door frame, a control measuring system and a mast, wherein a door body component is arranged in the door frame and connected with a driving system; the driving system is connected with a power system; the mast is provided with an antenna; and a communication unit of the control measuring system is electrically connected with the antenna. Water supply amount can be measured and controlled by the control measuring system in real time, and the communication unit realizes remote communication and control, so that integral automatic control in a river channel or a canal system is realized, the requirement of supplying water as required is met, the water flow is accurately controlled, and the utilization rate of irrigation water is greatly improved.

The present invention belongs to the technology field of preparing oil refining and petrochemical catalyst and relates to the preparation process of superfine zeolite powder from the superfine zeolite particle-mother liquid colloid suspension formed through hydrothermal process. Technologically, the present invention features that the said suspension is mixed with formaldehyde and urea in certain proportion to obtain mixture solution of pH 2-5; the mixture solution is let stand at 30-80 deg.c for 0.5-24 hr before the solid matter is collected through filtering; and the solid matter is washed, dried and roasted to obtain the superfine zeolite powder. The superfine zeolite powder has regular pore canal system, is silicate (aluminosilicate) crystal containing hetero metal atoms and has primary particle size below 100 nm.

The invention provides an oral nanometer insulin micelle preparation, comprising a therapeutically effective amount of insulin, pegylated phosphatide and pharmaceutically acceptable adjuvant. The insulin micelle preparation is prepared by using a one-step self-assembly method; particles with a uniform size can be formed, and the entrapment rate of insulin reaches more than 99.0%. In the micelle preparation, polyethylene glycol long chains can be distributed on the surface of a hydrophobic nucleus of an entrapment drug to form a hydrophilic protection film, which is favorable for overcoming a slime layer barrier, an enzyme barrier and an epidermal barrier in an alimentary canal system and protecting smooth entering of insulin into a blood circulation system for performance of hypoglycemic activity.

The invention discloses a high intensity duck breeding system for the early season rice ratooning rice field and a duck breeding method. The duck breeding system comprises a rice field canal system arranged in the rice field, and a first island and a second island are arranged in the rice field canal system. The duck breeding intensity of a unit rice field is obviously increased by the system, duck breeding intensity increases from 225-450 piece / hectare to 1350-1500 piece / hectare, the unit quantity of duck breeding is obviously increased and the unit output value is increased; meanwhile the problem that local rice seedlings are seriously damaged by the congestion and trampling of the duck entering the rice field is solved by the change of the landscape of the rice field.

The invention discloses a river network connectivity quantifying method based on a connectivity index and a graph theory. A river network is generalized into a directed river network graph model which takes reaches as vertexes and gate dams as sides; the river network graph model is represented by an adjacent matrix, a path, of the shortest distance, between any two reaches in the adjacent matrix is calculated, and multiple accessible paths are obtained; and a connectivity index RCI of a netted water system of the river network is calculated. A gate dam optimizing method based on the connectivity index and graph theory comprises that gate dams are removed from the river network one by one successively, the RCI is recalculated each time, the obtained RCIs are ordered from high to low, the ordering sequence is a priority dismounting sequence, and a river network gate dam is optimized according to the priority dismounting sequence. The connectivity quantifying method breaks through limitation of the application range of connectivity indexes of a tree-shaped water system, can be used for evaluation for connectivity change of the river network water system, and can be suitable for optimization of netted river systems with tedious hydraulic engineering and interlaced and complex artificial canal systems.

The invention discloses a remote automatically-controlled water saving system for gates in an irrigation district, and belongs to the technical field of modern and automatic management in irrigation districts. The remote automatically-controlled water saving system comprises a monitoring centre, a gate in-situ control unit, a canal system, the gates and water measuring flumes, wherein the monitoring centre comprises a main controller and a display unit, and the main controller comprises a water level flow monitoring unit, a fault analysis unit, a storage unit, an alarm and an optimized water distribution unit; the gate in-situ control unit comprises a programmable controller, a gate opening-closing transmission mechanism, and water level sensors, the canal system comprises two or more canals, and one gate is arranged at a water inlet of each canal; and one water measuring flume is arranged in each canal, and a water level measuring well provided with one water level sensor is arranged at each canal bank. According to the remote automatically-controlled water saving system disclosed by the invention, the problem of low modern and automatic level of management in irrigation districts at present is comprehensively solved, and the utilization rate of irrigation water is increased, thus valuable water resources are saved, a pivotal role is played on the sustainable development of the irrigation district, and increase for an agricultural modernization degree is benefited.

A large-scale irrigation system control method based on distributed model prediction control comprises the following steps that 1) a mathematical model of each canal in an irrigation system is built, and it is taken into consideration how many water inlets and water outlets may each canal have in practical situations; 2) performance indexes of each canal system are built, performance indexes of each canal are taken into consideration under partial cooperation situations, and therefore the system can be converged rapidly, communication traffic is reduced, and meanwhile overall performance can be improved; 3) the distributed MPC algorithm is provided, the optimal input quantity of each canal is calculated under the current situation by means of partial communication, the system is finally converged to a Nash equilibrium point by conducting iteration continuously on the basis of the Nash game theory, and therefore the optimal input quantity at the moment is reached.

The invention relates to a fabricated culvert member and a construction method thereof. The fabricated culvert member comprises a base plate, a rib plate and an arc plate, wherein the rib plate is in a gantry shape and is fixed on both ends of the arc plate, the lower ends of the arc plate and the rib plate are fixed on the base plate, the three plates are integrated, and a space between the arc plate and the base plate is a drainage channel. The fabricated culvert member provided by the invention has the advantages of factory fabrication, field assembly, simple operation, guaranteed quality,quick construction speed, simple structure, reasonable force bearing, simple maintenance (installation, removal and replacement, good integrity, high strength, large adaptive deformation, no pollution, small environmental influence, practicability, economy and obvious effect, the maintenance of the culvert member saves 20-40% human resources, material resources and money less than that of common masonry pebble revetments, town bottom or buried circular pipe culverts, and the water utilization coefficient of the canal system can be greatly increased (evaporation and seepage are reduced).

The invention discloses a multi-season rice and duck symbiosis breeding method. The multi-season rice and duck symbiosis breeding method includes the following steps: S1, constructing a rice field canal system, and dividing a rice field into a rice planting region, a duck fence region for rest at night, and a fodder isolating island; S2, planting early rice; S3, putting in a first batch of ducklings after the early rice is planted for 3-7 days; S4, putting a second batch of ducklings after the early rice is planted for 40-55 days; S5, harvesting the first batch of ducks when the early rice grows and develops to a filling stage; S6, harvesting the second batch of ducks before the early rice is ripe and harvested; S7, harvesting the early rice; S8, planting late rice; S9, putting a third batch of ducklings after the late rice is planted for 3-7 days; S10, putting in a fourth batch of ducklings after the late rice is planted for 40-55 days; S11, harvesting the third batch of ducks when the late rice grows and develops to a filling stage; S12, harvesting the fourth batch of ducks before the late rice is ripe and harvested; and S13, harvesting the late rice. The method can prolong the rice and duck symbiosis period, and can increase incomes.

The invention provides a floating oncomelania blocking device with clamping grooves, which is arranged in an oncomelania sinking tank, and comprises oncomelania blocking walls and clamping grooves which are respectively arranged on the two side walls of the oncomelania sinking tank, wherein the oncomelania blocking walls are respectively inserted in the clamping grooves, and the height of the oncomelania blocking walls is 0.5-0.6m. The device utilizes the clamping grooves and the floating oncomelania blocking walls to replace the traditional bricking concrete wall, when the water flow which contains oncomelania passes by the oncomelania blocking walls, floaters on the water surface can be blocked so that oncomelania is prevented from being spread to the downstream along with the water flow; and moreover, the oncomelania blocking walls can float up and down along with the water level, so the technical problem of an overlarge current-obstruction area under the conditions of canal system drainage, irrigation and other high water levels are effectively solved. The oncomelania blocking walls are reasonable in design and simple in structure, are flexible to install and convenient for getting materials, completely meet the requirements of preventing and controlling oncomelania spreading in a shistosoma affected area, and have a good popularization prospect.

The invention provides a canal system intelligent water-saving system and method. The canal system intelligent water-saving system comprises a central controller, a data processing module, canal flowmeters and water volume control valves; the water volume control valves are connected with the central controller and mounted at water supply openings of a main canal, branch canals, lateral canals and sublateral canals to control the water supply quantity of the canals; the central controller is sequentially connected with the data processing module and the canal flow meters; and the canal flow meters are mounted at the water supply openings of all the canals. According to the method, a hydrodynamic water-saving algorithm model is established, the water distribution amount and the water distribution time of a canal system are adjusted through the system, so that water saving is realized.

The invention belongs to the technical field of intelligent agriculture and particularly relates to a particle swarm algorithm-based canal system optimization water distribution method. The method comprises the steps of 1, establishing a target function according to upstream canal capacity, a canal water utilization coefficient, a downstream canal quantity and downstream canal capacity, and determining a rotational irrigation group number range, and a total particle number of a particle swarm and a maximum iterative frequency required for running a particle swarm algorithm; 2, generating the particle swarm in a feasible region by utilizing the particle swarm algorithm; 3, judging whether particles in the generated particle swarm meet constraint conditions or not; 4, recording the positions of all the particles meeting the constraint conditions; 5, calculating fitness values of the particles; and 6, judging whether the particle swarm algorithm reaches the maximum iterative frequency or not, and if the maximum iterative frequency is reached, outputting an optimization result, or otherwise, updating speed and position information of all the particles and performing the steps 5 and 6 again. The method is suitable for different types, different regions and different irrigation areas, and is high in practicality and universality.

The invention discloses a draining canal system for a tea and fruit garden. The system comprises a draining canal formed underground by the depth being at least 60 cm, and the draining canal is filled with a soil layer; plants are planted on the soil layer, and a blind canal is further arranged at the bottom of the draining canal; and the blind canal is sequentially filled with a large particle filler layer and a small particle filler layer in the direction from bottom face to the upper face. According to the draining canal system, the requirement of tea leaves and fruit trees for the draining system in the heavy rain and intense fall weather can be met, tea trees or fruit trees do not need to be planted on concavo-convex terrain, and even if the tea trees or fruit trees are planted on the flat ground, the draining requirement of the tea trees or fruit trees can be met; the tea trees, the fruit trees or the plants for supply nutrition can be still planted in the canal, the independent bottom face area is not occupied, and the harvest of the tea leaves and the fruit trees can be improved.

The invention relates to a high molecular material, in particular to a preparation method for a three-dimensional ordered macroporous chelating resin used for absorbing precious metal ions in aqueoussolution. The method comprises the following steps: (a) preparation of a silica colloidal crystal template; (b) preparation of a three-dimensional ordered macroporous crosslinked polystyrene porous material; (c) chloromethylation of the three-dimensional ordered macroporous crosslinked polystyrene porous material; (d) introduction of a hydrophilic cantilever; and (e) introduction of chelation groups. Compared with the traditional polystyrene resin microspheres, the prepared three-dimensional ordered macroporous chelating resin has the advantages that the resistance force of the regularly arranged pore canal systems is small, the chelation groups introduced on the hydrophilic cantilever can be changed according to the variety of the concrete absorbed metal ions, so that the purpose of highadsorption capacity to different metal ions is achieved.

The invention provides a land-saving and water-saving technology for converting farmland drainage and irrigation patterns, wherein the land-saving and water-saving technology is low in cost and fine in use effect. The technical scheme includes that farmland canal system water conservancy is converted into pipeline water conservancy, the technology mainly includes project area reconnaissance, design, construction and operation, technology implementation includes four steps: firstly, adopting a multistage underground pipe land-saving technology; secondly, converting uncovered canal irrigation into pipeline irrigation; thirdly, building a multifunctional enhanced drainage station; fourthly, building a remote automatic regional water resource regulation system. Cultivated land is effectively saved, the area of the cultivated land can be increased, the quality of the cultivated land is improved, regional water resources are effectively and comprehensively regulated, and overall agricultural production capacity is improved. The land-saving and water-saving technology is fine in use effect, long in duration time and suitable for large-area popularization and use, and huge social benefits, economic benefits and ecological benefits are generated.

The invention provides a novel assembly type field culvert building, and belongs to the technical field of water conservancy and irrigation. Through designing a plurality of shaping components, the components are assembled to a field culvert building by using an assembling connecting and plugging method and height of a retaining wall can be adjusted as actual requirements, so as to satisfy requirements of practical situations. The field culvert building is advantaged by simplified design, stereotyped components, high-quality material, assembled construction, efficient speed, and convenient maintenance. The field culvert building can be used as lateral canal and field ditch level canal system culvert field mating building of water conservancy and irrigation. Innovation of design and installation methods of a field culvert building is realized, and quality of the field culvert building and installation level are further improved.

The invention discloses an irrigation district water demand metering and monitoring method and system, and relates to agricultural irrigation water demand metering, and the method comprises the steps:dynamically and automatically calculating the water discharge capacity of each canal system according to the field water demands of different planting crops in different periods; through the water volume metering devices installed on the canal systems, dynamically monitoring the irrigation water volume condition, reminding managers of closing gates at what time in time, and forming reasonable irrigation plans for different periods, different crops and different land parcels. Irrigation operation of the irrigation area is guided, and a big data warehouse for automatic irrigation of the irrigation area is formed. According to the method, real-time sharing of irrigation district information resources is realized, the operation efficiency of the irrigation district is improved, and the operation cost of the irrigation district is reduced. A scientific decision basis is provided for an irrigation district management department, finally irrigation district management informatization, waterallocation rationalization, water measurement accuracy and charging standardization are achieved, and a technical guarantee is provided for achieving efficient modern agriculture.

The invention discloses an adjustable bent sheathing canal adjusting handle and an adjustable bent sheathing canal system. The adjustable bent sheathing canal adjusting handle comprises a shell, a cam, a sliding block, a core tube, a guide tube and a pull wire; the core tube is arranged in the shell, and the core tube is provided with a sliding groove; the cam is rotatably arranged in the shell, and the cam is provided with a guide groove; the sliding block comprises a connecting portion and a sliding portion, the connecting portion and the sliding portion are connected with each other, the connecting portion is arranged in the guide groove, and the sliding portion is located in the sliding groove; the guide tube penetrates through the core tube; the tail end of the pull wire is provided with an anchor block, the anchor block is located in the sliding groove, and the head end of the pull wire sequentially penetrates through the sliding block and the core tube and enters the guide tube;the cam is used for driving the sliding block to move along the sliding groove after rotating, the sliding block is used for driving the anchor block to move, and the anchor block is used for pullingthe pull wire. Therefore, the position and the angle of the distal end of a catheter can be adjusted by operating handle, the operation is simple, and the lesion position can be accurately reached.

The invention discloses a water measurement method and device. The water measurement method and device change a fixing mode of a traditional thin-plate weir, the two ends of a weir plate are providedwith hoisting mechanisms, and the hoisting mechanisms are driven by a lifting mechanism, thereby achieving that the height of the thin-plate weir is adjustable by adjusting the height of the weir plate. When the weir plate is moved downward to a flow control state and a water measurement state, water flows through the top of the weir plate, the flow rate is regulated by controlling the downward movement amount of the weir plate, the largest water head, of 2-5 times of a weir crest, on the upstream of the weir plate 1 is provided with a water level observation point to measure the weir passingwater head; at the moment, a whole weir gate forms the thin-plate weir, and at a certain predetermined height of the weir plate, the flow rate through the weir gate is calculated by measuring the water head on the weir and the structural size of the weir gate. The applicable limitations and disadvantages of the conventional thin-plate weir can be overcome, and the rectangular thin-plate weir whichis a laboratory precision level of water measurement equipment can be applied to the field and canal system.

The invention relates to an accurate measuring device, in particular to a metering device capable of measuring the irrigation water quantity in a field in real time when water is delivered to the field through the tail end of a canal system. The metering device capable of accurately measuring the irrigation water quantity in the field comprises a siphon pipe (1) which is in the shape like a Chinese character 'ji'. The middle portion of the siphon pipe (1) is provided with a top protruding upwards. The two ends of the siphon pipe (1) are provided with a water inlet (2) and a water outlet (3) respectively. A pressure hole (4) is formed in the top of the siphon pipe (1) and is connected with a high-precision pressure sensor (6). The high-precision pressure sensor (6) is connected with a micro-processing chip (7). The micro-processing chip (7) is connected with a liquid crystal display (8). The metering device is wide in application range, can be applied to all surface irrigation systems, is capable of being applied to water delivering to the field through the tail end of the canal system and can also be used for measuring water resources in the water delivering process.

A deeply sewage-cleaning process includes treating the sewage in ecological pond in which the aquatic plant, fish and aquatic fowls are cultured, treating by landscape pool in which there are fish, waterfall and fountain, and treating by said-filtering canal system with 7 filter layers.