40results about How to "Easy operation, maintenance and management" patented technology

The invention relates to the technical field of treating sewage by utilizing a biological technology and discloses an energy-saving type treatment device for MBR (membrane biological reactor) oxidation ditch sewage. The energy-saving type treatment device comprises an oxidization ditch biochemical reaction region and a membrane region, wherein a straight gallery of the membrane region and an S-shaped gallery of the oxidization ditch biological reaction region are in butt joint from the beginning to the end to form a circulating gallery; a penetrating tracery wall flat plate is overhead arranged on the bottom of the membrane region and used for dividing the membrane region into a membrane tank and a water distribution region from top to bottom; water distribution holes are uniformly distributed in the penetrating tracery wall flat plate; a membrane region water inlet is formed in the front end of the water distribution region; a membrane assembly and a water outlet tube are arranged in the membrane tank; the oxidization ditch biological reaction region is equipped with a water inlet device, a residual sludge outlet, a pushing device and an aeration device. According to the energy-saving type treatment device disclosed by the invention, the oxidization ditch process is organically combined with the membrane biological reactor; by utilizing hydraulic operation characteristics of large-flow circulating plug-flow state of the oxidization ditch process, mixed liquor in a groove is circulated and quickly flows through an MBR membrane set to realize solid-liquid separation, and therefore, the energy-saving type treatment device has the advantages of simple and compact structure, low operation energy consumption, small floor area, less investment, high pollutant removing efficiency and the like.

The invention provides three-dike two-passage reinforced surface flow artificial wetland and an operation method of the three-dike two-passage reinforced surface flow artificial wetland. The artificial wetland comprises a bed body and a substrate, wherein the inside of the bed body is filled with the substrate; the cross section of the bed body is in a rectangular shape; the bed body is inclined from the water inlet end to the water outlet end in the length direction; two ditches are arranged in the substrate to form three dikes including a left side dike, a middle dike and a right side dike. According to the operation method, (1), when the height of the middle dike is lower than that of the left side dike and the right side dike, the submerging operation is adopted; (2) when the height of the middle dike is greater than the height of the left side and the height of the left side dike, the non-immersing operation is adopted; (3) when the height of the middle dike is identical to the height of the left side dike and the height of the right side dike, dry and wet alternate operation is adopted. The structure of the artificial wetland is changed; the sewage treatment area and the biodiversity are increased; the defects of great occupied area and low efficiency of the artificial wetland are overcome; meanwhile, after one passage is changed into two passages, the dry and wet alternate operation of the treatment process can be realized; the biodiversity is realized; the sewage processing efficiency is obviously improved.

The invention discloses a method for arranging outgoing lines of a hydropower station at dam toe. A three-dimensional space between the main workshop and the auxiliary workshop of a hydropower stationbuilding and a dam body is utilizes, a main transformer is arranged on the ground space of the above-mentioned three-dimensional space and overhead wires are arranged in the upper space; the roof ofthe auxiliary workshop is provided with an outgoing line disconnecting switch and an outgoing line arrester; a door-type outlet frame is arranged on the roof of a common structural column at the junction of the main workshop and the auxiliary workshop. The outgoing line arrangement of the hydropower station is completed according to the requirements of the electrical equipment connection sequenceselected in a designed electrical wiring diagram. The method has the advantages of ensuring clear layout of outgoing lines of the hydropower station, little investment in power station construction, small floor space, and convenient operation and maintenance management under the premise of ensuring reliable electrical operation.

The invention discloses an efficient and energy-saving mine cooling and water supply system, comprising an air-cooled heat exchange unit, a water-cooled refrigeration unit, a high and low pressure heat exchange unit, a cooling air conditioner and an electric control system. The air-cooled heat exchange unit and the water-cooled refrigeration unit are respectively It is connected with a replenishing water tank, which is used to connect tap water. The air-cooled heat exchange unit and the water-cooled refrigeration unit can communicate with each other through pipelines and valves. Both the air-cooled heat exchange unit and the water-cooled refrigeration unit can exchange heat with the downhole through pipelines and valves. The pipes are connected, and the downhole heat exchange pipe located in the underground roadway is connected with a cooling air conditioner and a high and low pressure heat exchange unit for cooling the main roadway. The lower end is respectively connected with a cooling air conditioner, and the air-cooled heat exchange unit, the water-cooled refrigeration unit, the high and low pressure heat exchange unit and the cooling air conditioner are respectively electrically connected with the electric control system. The invention ensures the safety and stability of the well cooling system and reliable water supply for cooling and production.

The invention discloses a high-ridge reinforced surface-flow constructed wetland system and an operation method thereof. The high-ridge reinforced surface-flow constructed wetland system comprises a water inlet tube, a water distributing weir, a bed body, a water outlet weir and a water outlet tube, wherein a substrate is fed in the bed body; the water inlet tube and the water outlet tube are arranged on the bed body; the water distributing weir and the water outlet weir are arranged at the water inlet tube side and at the water outlet tube side in the bed body respectively; the bottom surface of the bed body is inclined towards the water outlet end from the water inlet tube, the gradient is 3.5%-5%, and a high ridge is formed in the surface of the substrate by ditching. The high-ridge reinforced surface-flow constructed wetland system comprises a submerged type operation method and an un-submerged operation mode. The high-ridge reinforced surface-flow constructed wetland system is small in floor space, convenient to operate, maintain and manage and low in investment and operation cost, the contact area of the substrate is increased, the adsorption and filter efficiency of the substrate is relatively high, the emergent aquatic plants, the submerged plants and the floating plants are planted in a matched manner to increase the varieties of the plants, the sewage purifying effect is improved, and a relatively suitable living environment is provided for the aquatic organisms to make a wetland system biological chain relatively complete.

The invention discloses an ecological restoration method for a lakeside wetland. In the method, hygrophilous woody plants are planted in a lakeside zone to construct wetland plant communities. The hygrophilous woody plants comprise hygrophilous arbor and hygrophilous shrub, wherein the hygrophilous arbor comprises willows, metasequoia, ascendens mucronatum, taxodium ascendens brongn and bamboo; the hygrophilous shrub comprises iteaceae and S.integra thrnb; and the plants are planted in the way of shoot cottage or soil ball transplant. The hygrophilous woody plants are perennial plants, have alow growth rate, low biomass, low growth amount and low plant disposal pressure and do not need felling and refloating every year, so that the defects of frequently harvesting and refloating herbal emergent aquatic plant communities every year are overcome, the maintenance and management cost of lake wetland plant communities are reduced, the lakeside depositing rate is lowered, and the secondarypollution hidden danger to lake water bodies is relieved. Compared with the prior art, the method has the characteristics of convenient operation, maintenance and management, low maintenance cost, high ecological benefit, easy popularization and application and the like and can be used for ecological restoration engineering of lake and lakeside bottomlands, swamp marshes and shallow water zones.