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Sewage treatment accurate sludge discharging system and method

A sewage treatment and mud system technology, applied in dehydration/drying/thickened sludge treatment, separation methods, chemical instruments and methods, etc., can solve problems such as environmental impact

Pending Publication Date: 2019-06-04
中原环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sludge contains a large amount of harmful substances, including heavy metals, bacteria, pat

Method used

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  • Sewage treatment accurate sludge discharging system and method
  • Sewage treatment accurate sludge discharging system and method
  • Sewage treatment accurate sludge discharging system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0085] Embodiment 1: A kind of sewage treatment precise sludge discharge system, see Figure 1-Figure 4 , including the sewage treatment tank group, the primary sludge pump room, the excess sludge pump room and the sludge treatment tank group. , secondary settling tank and outlet channel; the sludge treatment tank group includes a pre-thickening tank, a thickening front tank, a thickener, a thickening tank and a digestion tank arranged in sequence;

[0086] The primary settling tank group includes more than one primary settling tank. There is a primary settling sludge pump room next to the primary settling tank set, and a primary settling sludge discharge pump set is installed in the primary settling tank set. Each primary settling tank corresponds to A primary sedimentation and sludge discharge pump set, which is used to discharge the sludge in the corresponding primary sedimentation tank to the thickening tank for subsequent treatment;

[0087] The biological pool group inc...

Embodiment 2

[0093] Embodiment 2: a kind of sewage treatment accurate sludge discharge method, uses the sludge discharge system in embodiment 1, comprises the following steps:

[0094] (1) Calculation of the primary sedimentation and discharge volume of a single primary sedimentation tank: the calculation value of the primary sedimentation and discharge volume In the formula, V is the calculation value of primary sedimentation and discharge volume, unit m 3 / h;

[0095] Q is the water inflow to the primary sedimentation tank, unit m 3 / h, the value of the water inflow to the primary sedimentation tank is obtained through the inflow flowmeter set in front of the primary sedimentation tank;

[0096] η is the removal rate, %, in 80%;

[0097] Co is the COD concentration of the influent, in mg / L, and the COD concentration value of the influent is obtained through the COD online detector set in the influent pool;

[0098] p is the moisture content of sludge, %, and

[0099] MLSS is the ...

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Abstract

The invention discloses a sewage treatment accurate sludge discharging system and method, according to inlet water online COD detection value, primary settling pond mud scraping machine electric current, primary settling sludge concentration, biological pond sludge concentration, residual pump room sludge concentration, outlet water online TP detection value, outlet water online TN detection value, concentrated tank liquid level and the like, primary settling sludge discharge amount and residual sludge discharge amount are adjusted in real time, reasonable and accurate sludge discharge is facilitated, the stability of the system is promoted, the discharged water is guaranteed to be stably discharged up to the standard, and the production cost of enterprises is reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a precise sludge discharge system and method for sewage treatment. Background technique [0002] In the process of sewage treatment, a large amount of sludge will be produced, mainly including sieve residue, sediment, scum and excess sludge. The volume of sludge accounts for about 0.3%-0.5% of the treated water. If the wastewater is further treated, the sludge volume may increase by 0.5-1 times. With the increase of industrial water and domestic water, the amount of waste water and sewage is gradually increasing, and the amount of generated sludge is also gradually increasing. Activated sludge is also used in the sewage treatment process. Sludge contains a large amount of harmful substances, including heavy metals, bacteria, pathogens, etc. If it is not handled properly, it may have a greater impact on the environment. Through aeration, the activated sludge composed o...

Claims

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Application Information

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IPC IPC(8): C02F11/12C02F3/30B01D21/34B01D21/32
Inventor 王小玲和笑天张良吴江伟赵志丽李新喜蒋晚霞李永杨丽亚罗中立王小月李垚君
Owner 中原环保股份有限公司
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