Ecological pond simulating system for cultivation of advanced waste treatment

Abstract

The invention discloses a biomimetric eco-pond system for the deep treatment of wastewater from breeding. A treatment method comprises a step that after being subjected to anaerobic digestion treatment, wastewater from breeding first enters a water distribution tank for accumulation and water distribution, then enters a sank filter tank from a perforation on the bottom of the water distribution tank and finally enters a pond body after passing through a water distribution aeration slope for short-range purification, wherein the bottom of the pond body is provided with artificial float grass. A treatment system comprises the water distribution tank, the sand filter tank, the water distribution aeration slope, the pond body, an artificial float grass belt, water plants and a floating body and mud collecting well, wherein the water plants on the surface of the water in a pond are planted on floating bodies, so that in the growth process, the water plants can fully absorb carbon, nitrogen and phosphor in the wastewater and conveys oxygen from the leaves of the plants to the roots of the plants through the respiration of the plants to form a micro aerobic environment at a root part for further simulating the decomposition of organic substances and the growth of nitrobacteria, thereby removing nutrients such as nitrogen and phosphor in the wastewater and improving the overall aesthetic value of the pond body.

Description

technical field [0001] The invention belongs to the field of agricultural and environmental protection, and relates to a sewage treatment technology, in particular to an ecological imitation pond technology that requires advanced treatment of livestock and poultry breeding sewage after anaerobic digestion. technical background [0002] In the existing breeding sewage treatment technology, after simple anaerobic treatment of high-concentration livestock and poultry breeding sewage, CODcr often cannot be fully degraded, and nitrogen and phosphorus will be enriched in the sewage. In order to meet the discharge standards, further deep purification is required. In particular, nitrogen and phosphorus that cannot be enriched by anaerobic digestion are removed. Conventional methods generally use stabilization ponds, oxidation ditch and other treatment technologies, but conventional methods often have problems such as large power consumption, high operating costs, cumbersome manageme...

AI Technical Summary

Problems solved by technology

[0002] In the existing breeding sewage treatment technology, after simple anaerobic treatment of high-concentration livestock and poultry breeding sewage, CODcr often cannot be fully degraded, and nitrogen and phosphorus will be enriched in the sewage. In order to meet the discharge standards, further deep purification is required. Especially the removal of nitrogen and phosphorus that cannot be enriched by anaerobic digestion

Conventional methods generally use stabilization ponds, oxidation ditch and other treatment technologies, but conventional methods often have problems such as large power consumption, high operating costs, cumbersome management, high investment costs, and frequent equipment maintenance; if artificial wetlands are used for treatment, although It has the advantages of less investment and no power operation, etc., but the sludge generated during the anaerobic treatment of livestock and poultry sewage is easy to block the substrate. Generally, the artificial wetland operates for about one year, and the sewage purification effect will decline. The substrate must be renewed, resulting in repeated investment.

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