Modularized intelligent sewage treatment device for expressway service area and regulation and control method

Abstract

The invention discloses a modular intelligent sewage treatment device for an expressway service area and a regulation and control method. The device comprises a water inlet pipe, the hydrolysis acidification pool is communicated with the water inlet pipe; the multi-stage AO pool comprises a plurality of anoxic pools and aerobic pools which are alternately arranged, and adjacent treatment tanks of the anoxic pools and the aerobic pools are communicated with each other; the sedimentation tank is used for receiving effluent of the multi-stage AO tank, is provided with a water outlet pipe and is used for outputting settled sewage; the water inlet flow distribution module is used for distributing the sewage in the hydrolysis acidification tank into each anoxic tank; the aeration module is used for switching the aerobic environment and the anoxic environment of the multi-stage AO tank; a biological carrier I is arranged in the hydrolysis acidification tank and is used for reacting with phosphate radicals in the sewage to form struvite precipitates; a biological carrier II is arranged in the anoxic tank and the aerobic tank and is used for promoting the formation of an aerobic-anoxic-anaerobic zone, removing phosphorus, oxidizing pollutants in water and promoting the proliferation of microorganisms. The method based on the device can enhance the nitrogen and phosphorus removal capability of the process.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a modularized sewage intelligent treatment device and a control method in an expressway service area. Background technique [0002] The expressway service area is an important part of the expressway network. It is a place for drivers and passengers to rest, eat, stay, shop, and repair vehicles. It mainly includes public toilets, restaurants, shopping convenience stores, gas stations, and repair places. With the further advancement of national infrastructure construction, my country's expressways have developed rapidly. While ensuring transportation and promoting economic development, the impact of expressways on the environment has also attracted much attention. As an important component of the expressway network, the expressway service area is increasingly diversified in the continuous development. While facilitating travel and meeting the diversity of needs, the impact ...

AI Technical Summary

Problems solved by technology

The sewage in the expressway service area has problems such as large changes in water quantity and quality, poor biodegradability of sewage, and relatively single operation mode. Traditional technical means generally deal with the impact load of water quality and quantity by expanding the capacity of the regulating tank and sewage treatment unit, which not only increases sewage The investment in treatment facilities, and the large pool capacity makes the carbon source unable to be used for denitrification when the water flow is small, further deteriorating the water quality of the effluent

At the same time, the process operation mode of sewage treatment facilities is relatively single, which cannot adapt to the large changes in influent water quality and water quality, resulting in unstable sewage treatment operations and other problems

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