An integrated domestic sewage treatment equipment and treatment method

Abstract

Provided are integrated domestic sewage treatment equipment and treatment method. The integrated domestic sewage treatment equipment is formed by the following treatment units: a gridding feces tank, an anaerobic tank, an aerobiotic tank and a precipitating and sterilization pond, all of which are sequentially communicated. The integrated domestic sewage treatment equipment is characterized in that water inlet and outlet pipes are arranged between the treatment units, each treatment unit is provided with a mud discharging pipe and an exhausting pipe, the anaerobic tank and the aerobiotic tank are each provided with an aerating system and a flow-back system, a triangular weir is adopted in water outflow of each treatment unit, the input end of the water inlet pipe of the gridding feces tank is located outside the equipment, and an inlet penetrates into the portion, before a grid, at the bottom of the gridding feces tank; the gridding feces tank is connected with the anaerobic tank, the water inlet pipe of the anaerobic tank is communicated with the interior of the bottom of the tank for water inflow, and a filling area of the anaerobic tank is filled with a fixed carrier and biological sponge iron filler; the anaerobic tank is connected with the aerobiotic tank, the water inlet pipe of the aerobiotic tank is communicated with the bottom of the tank for water inflow, and a filling area of the aerobiotic tank is filled with a fixed carrier and biological sponge iron filler; the aerobiotic tank is connected with the precipitating and sterilization pond, the water inlet pipe enters the middle of a precipitating pond body, and a 45-degree slope is arranged in a sludge area at the bottom of the pond; the precipitating pond body is connected with a sterilization pond body, the water inlet pipe enters the bottom of the sterilization pond body for chlorine tablet sterilization, and water is output out of the upper water outlet pipe.

Description

technical field [0001] The invention relates to an integrated domestic sewage treatment equipment and treatment method, which is suitable for domestic sewage treatment in leisure and entertainment places, tourist attractions and other places with a small amount of sewage, no municipal pipe network access, and effluent directly discharged into natural water bodies. Background technique [0002] Small integrated sewage treatment equipment has been researched for more than 30 years. At present, countries and regions such as Japan, Europe and the United States have widely used it in the treatment of domestic sewage and some industrial wastewater. my country's relevant policies have stipulated that the sewage and industrial wastewater discharged from residential areas, tourist attractions, resorts and other scattered crowd settlements that cannot be included in the urban sewage collection system should be treated locally and discharged up to standards. The technology adopted by ...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent CN201420497643 discloses an "integrated domestic sewage treatment equipment", which includes sequentially connected anaerobic tanks, contact oxidation tanks, sedimentation tanks and disinfection tanks. The biochemical part has fillers, which have both aerobic treatment and Anaerobic micro-treatment, and can disinfect the effluent, but there is no pretreatment process such as grille and homogenization tank at the front end, the upper part of the biochemical tank is prone to short flow of water in and out, the sedimentation tank has poor sedimentation effect, and the inclined plate and inclined tube are easy to Blockage, complicated disinfection device, low microbial activity and easy loss, poor impact load resistance, slow start-up or recovery of equipment; Chinese patent CN201220730482 discloses a "buried integrated domestic sewage treatment equipment", which treats The equipment includes adjustment tank, hydrolytic acidification tank, contact oxidation tank, vertical flow sedimentation tank, water production tank, electric control box, which integrates anoxic, aerobic and disinfection, and operates stably. A submersible sewage pump is slightly redundant, the mixing effect of the hydrolysis acidification tank is not good, there are many auxiliary equipment, the pipeline is complicated, the operation is complicated, and the effect of nitrogen and phosphorus removal is not good; Chinese patent CN201420604757 discloses an "integrated domestic sewage treatment equipment ", the treatment equipment includes anaerobic tank, anoxic tank, aerobic tank, two sedimentation tanks, and equipment room in turn. The aerobic tank is added with suspended fillers, which strengthens the removal efficiency of nitrogen and phosphorus, and improves and stabilizes the treatment effect. , but the front end is not pretreated and easy to block, the effluent is not disinfected, the equipment occupies a large area, the return pump 17 and other equipment and various pipelines are relatively complicated, difficult to control, and poor in practicability

[0004] To sum up, most of the existing equipment is not equipped with pretreatment and is easy to block, and the water conservancy conditions are not good and it is easy to short flow. The treatment of domestic sewage with high nitrogen and low carbon cannot simultaneously have good nitrogen and phosphorus removal capabilities, shock load resistance, simple and practical , high efficiency and low cost, and it is difficult to split and install according to the site

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