Multi-mode activated sludge method sewage treatment integrated device and sewage treatment method

Abstract

The invention provides a multi-mode activated sludge method sewage treatment integrated device and a sewage treatment method. The device comprises an activated sludge pool, and gates, a mixer, a waterinlet pump, a fan pump, a water decanter, an oxidation-reduction potential online instrument, a dissolved oxygen meter, an MLSS sludge concentration meter and a PLC module arranged in the activated sludge pool. The PLC module is in control connection with the water inlet pump, the fan pump and the gates and controls operation of the water inlet pump, the fan pump and the gates. The PLC module isin control connection with an air volume electromagnetic flowmeter, an inlet water flow electromagnetic flowmeter, the oxidation-reduction potential online instrument, a dissolved oxygen meter onlineinstrument, an MLSS sludge concentration meter online instrument and a liquid level gauge online instrument, and is used for receiving date of air outlet volume and inlet water flow, receiving operating parameters of the oxidation-reduction potential on-line instrument, the dissolved oxygen meter, the MLSS sludge concentration meter and the liquid level gauge, performing data sorting analysis, andadjusting operating of the water inlet pump, the fan pump and the gates according to analysis results.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a multi-mode activated sludge sewage treatment integrated device and a sewage treatment method. Background technique [0002] Conventional small urban domestic sewage treatment system / small rural sewage treatment system consists of: domestic sewage collection pipe network outside residential walls, inverted rainbow / pipe bridge / casing protection crossing of obstacles such as rivers / highways / railways, Centralized sewage treatment device (buried or above ground, device that adopts a single treatment process such as integrated biofilm method / septic tank / artificial wetland / ecological pond), and discharge of tail water that meets the standard (discharge to natural river water, etc.). [0003] The limitations of the conventional treatment process to achieve targeted operation requirements: limited to the sporadic and fragmented characteristics of the above-mentioned sewage...

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Problems solved by technology

[0006] In view of the above situation, the present invention provides a multi-mode activated sludge sewage treatment integrated device and sewage treatment method, which solves the problem that the existing sewage treatment mode is single, and the production cycle such as product type and output cannot be adjusted according to the water volume and water quality of industrial waste water. Due to the fact that the actual situation changes greatly due to the nature of the environment, and the corresponding process is adjusted in time, the effluent water quality requirements of industrial wastewater cannot be guaranteed, and in terms of operating energy consumption and operating chemical consumption, it is impossible to achieve refined operation with the change of incoming water.

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