Treatment method for livestock breeding sewage

Abstract

The invention discloses a treatment method for livestock breeding sewage. According to the technical scheme, a chemical method is used for removing nitrogen and phosphor, and performing anaerobic digestion, aerating, manual land wetting and macroporous resin adsorption. The chemical method and a manual land wetting method are combined to remove nitrogen in the sewage at a high rate and rapidly at a low cost, and because guanite is recovered, resources are saved, and sustainable development can be achieved. The nitrogen and phosphor are removed at the same time, and therefore the multi-purpose effect is achieved. Thalia dealbata and pennisetum purpureum are planted inside a manual land wetting pool, in this way, the nitrogen can be adsorbed, the environment can be beautified, and air can be purified. Acetic acid is used for adjusting the pH, in this way, the pH can be changed, and the amount of methane generated in the anaerobic treatment process can be increased. The generated methane can be used for cooking and lighting of farmers, and therefore a lot of coal, natural gas and electricity are saved. Suspended matter obtained through filtering can serve as crop fertilizer, and therefore the planting cost of the farmers is lowered; non-woven cloth serves as a biological film, in this way, the price is low, the service life is long, and the cost is greatly lowered.

Description

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AI Technical Summary

Benefits of technology

This patented technology provides a way to treat domesticated animals that produce wastewater containing harmful substances such as ammonia or organophosphonate compounds (OPC). By combining two methods - chemistry and constructional wetlands, these techniques help clean up this material effectively without causing environmental concerns like pollution from landfills. Additionally, they allow us to recover valuable materials through recycling processes instead of disposing them at their original destination. Overall, this new approach helps improve animal health and promote economic growth.

Problems solved by technology

This patents discusses different ways for treating municipal animal husbandry and pigment manufacturing facilities where excessive amounts of unhealthy or harmful wastes have been released onto landfill areas around the world. These materials include fertilizers containing various compounds like urea sulfate, lime ash, calcium hydroxide, magnesium oxychloride, iron chelates, selenium, polysulfides, pesticides residues, etc., while also contributing significantly to environmental issues due to their negative impact on human health and food safety concerns over decades ago. Current methods involve expensive physical removal operations followed by conventional biocide systems but they may face challenges at this time because these techniques require significant resources and lead to secondary contamination caused by nonorganism metabolites produced during decomposition of certain nutrients.