Ecological utilization method for purifying rural household sewage and sewage generated by aquatic bird breeding

Abstract

The invention provides an ecological utilization method for purifying the rural household sewage and sewage generated by aquatic bird breeding. The method comprises the following steps: preprocessing rural household sewage and sewage generated by aquatic bird breeding, introducing preprocessed sewage into an ammonification and phosphorization biological tank, wherein the ammonification and phosphorization biological tank contains sludge, which comprises bacillus and pseudomonas, and the microbes can convert the organic nitrogen and organic phosphorous in sewage into ammonia nitrogen and inorganic phosphorous; introducing the sewage into a phytase mixing tank, processing sewage in the phytase mixing tank; then introducing the sewage into a ditch, wherein in the ditch, optical fertilizer type aquatic vegetables are planted in the ditch, a greenhouse is arranged over the ditch, the greenhouse is covered by a light conversion membrane, which can absorb the UV light in sunlight and convert UV light into blue light and red light, and the top of the greenhouse is provided with a solar-LED high efficient vegetable light source system for supplying light to the vegetable; and finally introducing the effluent from the ditch into a biological tank, which has aquatic plants and animals. The processed water can be used for irrigation or reusing. The provided method organically combines sewage treatment and vegetable planting. The organic nitrogen and phosphorous in sewage can be decomposed and converted into fertilizer for vegetables high efficiently, and economic benefit can be generated.

Description

Technical field [0001] The invention relates to a rural water pollution control method, in particular to an ecological utilization method for purifying rural domestic sewage and waterfowl breeding sewage, and belongs to the technical field of sewage treatment. Background technique [0002] Rural sewage is difficult to collect and treat because of its dispersive characteristics. It has become an important source of pollution in the water environment. Therefore, it is becoming increasingly urgent to study ecological treatment technologies suitable for rural domestic sewage. [0003] CN101948219A discloses a method for treating rural sewage by a three-stage septic tank, a collection tank, a tower biological filter, and a wetland. CN101973637A discloses a river purifying rural sewage system using abandoned rivers or low-lying near-natural rivers to construct a settlement unit, an artificial bionic material contact oxidation unit, a vertical flow constructed wetland unit and a floating ...

AI Technical Summary

Problems solved by technology

The above sewage treatment technologies only consider how to remove pollutants, but do not consider the conversion of nitrogen and phosphorus (including organic nitrogen and phosphorus and inorganic nitrogen and phosphorus) in rural sewage into fertilizer utilization for crops.

[0004] In addition, CN101913702A discloses a rural domestic sewage treatment system and treatment method: plant crops in greenhouses, install a bioreactor with high load performance in the middle, rely on the microorganisms in the bioreactor to purify the sewage, and the treated bioreactor effluent Reuse; the feature of this method is that the bioreactor is placed in the greenhouse, which has a certain insulation effect on the bioreactor, but this method only collects the carbon dioxide produced by the microbial purification of sewage, and then uses it for the photosynthesis of vegetables in the greenhouse. The effect is required, and the organic matter such as nitrogen and phosphorus in the sewage is not used for the growth of crops in the greenhouse

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