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Modularized biological rotating disc multi-serial stage system for deeply treating domestic sewage

A biological turntable and domestic sewage technology, which is applied in the field of sewage treatment and resource utilization, can solve the problems of insufficient stability of TP water output, lack of control means, uneven water distribution, etc., and achieve the effect of reducing TN, strengthening system control ability, and reducing surface load

Inactive Publication Date: 2019-04-16
SOUNDGRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, a large number of township projects constructed and operated by the company use the biological turntable technology, which has brought good social and environmental benefits, but with the gradual operation of the project, some problems have also been exposed, such as the lack of regulation for the situation of large changes in water quality and quantity Means, too many parallel turntables lead to uneven water distribution, TP water outlet is not stable enough, etc.

Method used

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  • Modularized biological rotating disc multi-serial stage system for deeply treating domestic sewage
  • Modularized biological rotating disc multi-serial stage system for deeply treating domestic sewage

Examples

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Embodiment 1

[0058] like figure 1 As shown, this embodiment provides a modularized biological turntable multi-stage series system for sewage treatment in villages and towns. Taking the treatment of 1000t / d sewage plant as an example, the process includes: a fully submerged biological turntable unit, a PAC dosing unit, a The first-level semi-submerged biological turntable device, the second-level semi-submerged biological turntable device, the second settling tank and the reflux unit; among them,

[0059] The fully submerged biological turntable unit, as an anoxic unit, is composed of a tank, a spindle, a drive device, a disk and a liquid level control system. The front end of the submerged biological turntable unit is equipped with a water inlet tank as the sewage inlet. The domestic sewage is mixed with the return liquid of the turntable through the lift pump and then enters the fully submerged biological turntable unit. The disc serves as the biofilm attachment point. The fully submerge...

Embodiment 2

[0066] like figure 2 As shown, this embodiment provides a modular biological turntable multi-stage series system, which is used for sewage treatment in villages and towns. Taking the treatment of 500t / d sewage plant as an example, the combined process unit includes: fully submerged turntable, PAC dosing system, simultaneous Shaft multi-stage semi-submerged turntable, secondary settling tank and return flow system.

[0067] The structures and functions of the fully submerged biological turntable unit, PAC dosing unit, secondary settling tank, and reflux unit in this example are the same as in Example 1, the difference lies in that the building size of the equipment is reduced due to the small amount of treated water, and the core difference is The advantage lies in the structure of multi-stage series semi-submerged biological turntable units.

[0068] In this embodiment, the semi-submerged biological turntable unit used is a coaxial two-stage turntable. Because the water volu...

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Abstract

The invention discloses a modularized biological rotating disc multi-serial stage system for deeply treating domestic sewage. According to the components of the modularized biological rotating disc multi-serial stage system, a sewage inlet is formed in a full-immersion biological rotating disc unit; the full-immersion biological rotating disc unit is sequentially connected with a multi-serial stage half-immersion biological rotating disc unit and a settling unit; the disc piece distance of a front-stage biological unit is larger than that of a rear-state biological unit in the multi-serial stage half-immersion biological rotating disc unit; multiple medicine adding points are arranged on a medicine adding unit and located on the full-immersion biological rotating disc unit and multi-serialstage half-immersion biological rotating disc unit respectively; a reflux unit is connected between a tail end water outlet of the half-immersion biological rotating disc unit and a front end sewageinlet of the full-immersion biological rotating disc unit; an up-to-standard water outlet is formed in the settling unit. Through a combined technology, it can be ensured that the COD, ammonia and nitrogen of effluent reach standards, and all indexes of the effluent reach first-level A discharging standards of contaminant discharging standards of municipal wastewater treatment plants (GB189118-2002).

Description

technical field [0001] The invention belongs to the field of sewage treatment and resource utilization, and provides a modular biological turntable multi-stage series series system for deep treatment of domestic sewage, which is suitable for use in township sewage treatment plants. Background technique [0002] In recent years, my country's township construction has achieved rapid development, which has also led to the development of related industries in the region, and the architectural pattern and distribution of residents in the region are also changing. However, with the rapid development of the township economy, a large number of residential population has also been gathered rapidly, followed by a large increase in the consumption of goods and sewage discharge in the township. Township sewage is different from municipal sewage. It is characterized by a small population, small footprint, and relatively regular life. Therefore, sewage will be concentrated in the three ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F1/5236C02F3/302C02F3/308C02F2301/08
Inventor 王刚马连勋赵雪莲王俊安
Owner SOUNDGRP CO LTD
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