Integrated modularization sewage treatment plant

Abstract

The invention provides an integrated modularization sewage treatment plant, belongs to the technical field of sewage treatment, and solves the problems that the structure of a denitrification pool cannot be simplified and operation cost in a sewage treatment process is high. The treatment plant comprises a hydrolysis acidification pool, a denitrification pool, a nitrification pool, a middle pool and a disinfection pool, wherein the denitrification pool comprises a pool body, a water outlet pipe communicated with a process water pipeline, a washing water discharge pipe communicated with a water discharge pipeline, a water and gas distribution device, a filter plate and a filter head; the filter plate is fixedly arranged on the upper part of the pool body and divides the inner cavity of the pool body into an upper chamber and a lower chamber; a water outlet communicated with the water outlet pipe is formed in the upper chamber; a gravity type washing water chamber is formed between the water outlet and the filter plate; a suspension material filtering layer is arranged in the lower chamber; a water discharging hole communicated with the washing water discharge pipe is formed in the lower chamber below the suspension material filtering layer. Through the above design, operation cost including manufacture cost, daily maintenance cost, ton water treatment power consumption cost and the like of the treatment plant can be greatly lowered.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and relates to an integrated modular sewage treatment plant. Background technique [0002] Sewage treatment can be divided into physical treatment technology, physical and chemical treatment technology, biochemical treatment technology and chemical treatment technology, among which the biochemical treatment technology of sewage is the most commonly used, and there are many kinds of biochemical treatment technologies, mainly based on the growth conditions of microorganisms And the different conditions of oxygen supply mode are classified. [0003] The pre-denitrification process, also known as the A / O biological denitrification process, is the most widely used denitrification process in urban sewage treatment plants. Its biggest advantage is that it can make full use of the biodegradable COD in the influent as denitrification The carbon source of the reaction can effectively remove COD an...

AI Technical Summary

Problems solved by technology

[0005] The existing pre-denitrification process only maintains the normal operation of the system without considering the optimal control of system operation, resulting in large power consumption per ton of water in urban sewage treatment plants, and the large number of operation and management personnel, resulting in relatively high operating costs for sewage treatment. high

For the internal circulation nitrification filter disclosed above, when the filter material is backwashed, it is necessary to use the water pump to pump the water set in the circulation tank from bottom to top to clean the filter material, which consumes a lot of energy and is not conducive to saving energy and cost. ;In addition, because the filter head is arranged at the bottom of the filter tank and is located below the supporting layer and the filter material layer, that is to say, when the filter head and filter plate need to be installed or repaired and replaced, maintenance personnel need to go to the bottom of the filter tank Operate the filter head, and because the support layer and filter material are laminated on the filter head, it is not conducive to the installation or maintenance and replacement of the filter head, which increases the difficulty of the work of the staff, takes time and effort, and increases the operating cost

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