7 results about "Stabilization pond" patented technology

The invention relates to the technical field of sewage treatment, and particularly discloses a constructed wetland and stabilization pond combined sewage treatment method and system based on tidal flow. Specific compositions contained in the system mainly comprise a composite filler and an immobilized denitrifying bacterium agent. The composite filler is prepared from gravel, modified zeolite, biochar and a calcium-based phosphorus removal agent according to a specific mass part ratio; the immobilized denitrifying bacterial agent takes sodium alginate-biochar microspheres as a carrier to load denitrifying bacteria. The preparation method comprises the following steps: sewage is pretreated and then enters the stabilization pond for primary treatment, then enters the constructed wetland for tidal operation, anaerobic strengthening, aerobic reoxygenation and filler regeneration, and finally is purified and recycled. The composition provided by the invention can provide a synergistic effect of efficient adsorption, chemical precipitation and biodegradation for pollutant removal, and has the advantage of improving the nitrogen and phosphorus removal efficiency and operation stability of a system; in addition, the preparation method disclosed by the invention has the advantages of mature process, controllable parameters and easiness in large-scale production.

The utility model discloses a kind of filler flow guide stabilization ponds, belong to stabilization pond technical field, the filler flow guide stabilization pond, including stabilization pond body, the inner bottom wall of stabilization pond body is fixedly installed with sewage inner pond, six partition plates are fixedly installed between the sewage inner pond outer wall and stabilization pond body inner wall;The top of stabilization pond body, sewage inner pond and six partition plates is provided with the opening and closing mechanism that makes the purification of sewage between stabilization ponds alternately, six The filler mechanism that makes organic matter in sewage more fully decomposed is provided between the partition plate.Between stabilization ponds alternately purifying sewage by being provided with opening and closing mechanism, the sewage inlet and sewage outlet of stabilization pond can be alternately changed, so that the stability of stabilization pond operation and reliability are improved.

The application discloses an ecological wetland system for purifying composite pollution of a river entering a reservoir and a running process thereof. The system is provided with a water inlet channel, a first down-flow vertical subsurface flow artificial wetland, an ecological stabilization pond and a second down-flow vertical subsurface flow artificial wetland in a ladder type along a water flow direction. The water outlet of the water inlet channel is provided with a drop weir in communication with the first down-flow vertical subsurface flow artificial wetland. The first down-flow vertical subsurface flow artificial wetland is in communication with the ecological stabilization pond through a first water collecting pipe. The water outlet of the ecological stabilization pond is provided with a rolling dam in communication with the second down-flow vertical subsurface flow artificial wetland. The second down-flow vertical subsurface flow artificial wetland is in communication with a lake reservoir through a second water collecting pipe. The system is combined by artificial wetlands and ecological stabilization pond units with different running modes, different micro-habitat conditions are created, nitrogen, phosphorus and emerging pollutants in the river entering the reservoir are purified in a targeted manner, and the water quality entering the lake reservoir is met.

The application discloses a kind of composite flow constructed wetland treatment systems for treating contaminated water body, by adjusting pond, stabilization pond, enhanced treatment zone, advanced treatment zone and buffer zone constitute, the water inlet end of the adjusting pond is provided with grid structure;First tertiary drop structure is arranged between the effluent end of the adjusting pond and the water inlet end of stabilization pond;Submerged overflow mechanism is arranged between the effluent end of the stabilization pond and the water inlet end of enhanced treatment zone, and biological membrane reactor is arranged in the enhanced treatment zone;Multiple groups of vertical flow treatment units are arranged in the advanced treatment zone;Second tertiary drop structure is arranged between the drainage end of the advanced treatment zone and the water inlet end of buffer zone.The overall system of the application is composed of adjusting pond, stabilization pond, enhanced treatment zone, advanced treatment zone and buffer zone, wherein suspended solids are treated, followed by COD, ammonia nitrogen and total nitrogen, and then total phosphorus is further treated, so that rural domestic sewage and agricultural non-point source pollution are treated.

The invention relates to a low-grade cultivated land quality improving system and method based on a stabilization pond. The low-grade cultivated land quality improvement system based on the stabilization pond comprises the following units: 1) low-grade cultivated land; 2) a stabilization pond; (3) ditch network construction; and 4) a clear water backflow unit and a sludge backflow unit. The invention further provides a low-grade cultivated land quality improvement method based on the system. The system and the method provided by the invention realize cyclic utilization of soil-water-bottom mud resources and nutrients in agricultural production, can reduce the use amount of chemical fertilizers in farmland, reduce the agricultural production cost, reduce environmental pollution caused in the production and use processes of the chemical fertilizers, and conform to the concept of sustainable development.

The present application relates to a kind of artificial wetland plant remediation sewage treatment tank and its construction technology applied to sewage treatment field, including stabilization pond, aeration pond, subsurface flow wetland and surface flow wetland, standard tail water is sequentially inputted and outputted in stabilization pond, aeration pond, subsurface flow wetland, surface flow wetland by pipeline, complete the further purification treatment of standard tail water, aeration pond is provided with aeration mechanism, aeration mechanism includes aeration pipe, rotating disc, aeration disc, aeration nozzle and turbulence spring, using the above-mentioned aeration mechanism, realize the expansion aeration range, improve aeration efficiency and effect, improve the water efficiency of gas, so that the treatment effect of aeration pond to standard tail water is better, on this basis, the number of aeration mechanism required in the aeration pond of same area can be reduced, thereby the number of pipeline layout is reduced, the equipment cost required for constructing aeration pond is reduced, while the subsequent maintenance operation amount of aeration mechanism can be reduced, the construction and maintenance cost of aeration pond is greatly saved.

The invention provides an enhanced nitrogen and phosphorus removal tail water multi-pond constructed wetland treatment system and method, and relates to the technical field of sewage environment-friendly treatment. According to the treatment system, through the synergistic effect of nitrifying bacteria, phosphorus-accumulating bacteria and bacillus stearothermophilus and in combination with layered aeration and carbon source regulation, the total nitrogen removal rate is greatly increased; under the support of a CO2 carbon source generated by the thermophilic bacteria, the phosphorus-accumulating bacteria and the nitrifying bacteria are combined with the adsorption of the modified zeolite filler, so that the total phosphorus removal rate is also greatly increased; in addition, suspended solids are intercepted by the stabilization pond, nitrogen and phosphorus are absorbed by the surface flow wetland, denitrification is enhanced by the subsurface flow wetland, deep purification is performed by the submerged plant pond, step-by-step degradation of pollutants is realized, and the overall efficiency of the system is also greatly improved.