Dry feces collection breeding waste water treatment method

Abstract

The invention relates to a dry feces collection breeding waste water treatment method which effectively solves the problems that the original livestock breeding waste water treatment project is high in investment and operating cost, and inconvenient to operate, residual sludge cannot be arranged properly, and secondary noise pollution is easy to generate. The method comprises the steps of filtering off large solid impurities from breeding waste water through a grid and a hydraulic screen, allowing the waste water to enter a sewage regulation tank for water quantity and water quality regulation, conveying the waste water into a UASB (upflow anaerobic sludge blanket) reactor for anaerobic treatment, dividing the waste water into a gas phase, a liquid phase and a solid phase through a three-phase separator, conveying the liquid phase into anaerobic-anoxic-aerobic equipment for denitrification and dephosphorization, allowing the waste water to enter artificial wetland to further remove a COD (chemical oxygen demand), a BOD (biochemical oxygen demand), N and P, performing ultraviolet disinfection, allowing the waste water to enter a settling tank for settling, directly discharging clearwater or using the clear water as virescence water, and conveying sludge into a plate-and-frame filter press. The method is novel and unique, easy to operate and use, low in cost and good in effect,and equipment is easy to mount.

Description

technical field [0001] The invention relates to the treatment of aquaculture wastewater, in particular to a treatment method for dry-cleaning aquaculture wastewater. Background technique [0002] The livestock and poultry breeding industry, such as the breeding of poultry chickens, ducks, and geese, and the breeding of cattle, pigs, and sheep, has developed rapidly with the improvement of people's living standards. Houses) produce more and more waste water, and it cannot be discharged directly, otherwise it will pollute the environment. [0003] The amount of wastewater in the livestock and poultry breeding industry will fluctuate with time and seasons (day and night), which will indirectly cause fluctuations in water quality. The water volume is adjusted and stabilized. [0004] Excessive SS in raw water will affect the sewage treatment effect in biochemical treatment, and the fecal residue in SS is the main cause of high COD and BOD in raw water, so pretreatment must be ...

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Problems solved by technology

[0010] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a method for the treatment of dry and clear manure breeding wastewater, which can effectively solve the problem of large investment, high operating costs, inconvenient operation and inability to properly handle the original livestock and poultry breeding wastewater treatment project. Placement of excess sludge is prone to secondary noise pollution, waste of water resources, and environmental sanitation cannot be guaranteed

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