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Sewage of area of garden of industry of printing and dyeing handles assorted cra

From;    Author:Stand originally
Project general situation:
Sewage of area of garden of industry of printing and dyeing handles efficient combination craft and stable control technology centrally, it is with the city that do not have stannum by Nanjing university finite liability company is aimed at environmental protection sewage of industry of our country printing and dyeing administers the current situation, technology of a when develop successfully advanced processing.
The technology wants a place:
This project is in oxygen of traditional be disgusted with - on base of good oxygen technology, cooperate with with multiple loop aggrandizement technology (MRCT) is core, with biology processing is given priority to, complementary handle with chemistry, constitute a whole integrated processing technological process, withheld purify of biology processing technique already organic contaminant and decolour ability the characteristic of strong, moving stability, developed remains of physico-chemical method purify again the characteristic that organic contaminant achieves deepness to handle, investment, moving cost is inferior, suit the current situation that liquid waste of our country printing and dyeing handles.
Economic evaluation:
This project technology already was pressing down integrated sewage treatment plant without Xi Zhutang (one, 2 period project each 15000 tons / day) , press down integrated sewage treatment plant without Xi Qianzhou (3 period project 40000 tons / day) , the bridge presses down Jiang Yinxin, 10000 tons / day) , company of group of sheet of Jiangsu Gong Liu (30000 tons / day) success application receives in waiting for liquid waste of more than 10 printing and dyeing to handle a project centrally. The water quality index of these project raw water is: PH value is in 9 ~ 11 between, CODCr is 900 ~ 2000mg/L, chroma 500 the left and right sides, ton water investment is 1200 yuan about / ton, handle cost 1.38 yuan / ton. The tail water after processing was achieved " sewage discharges a standard integratedly " (the one stage that sets in GB8978-1996) discharges a standard, namely CODCr is less than 100mg/L, PH value is in 6 ~ 9 between, chroma is less than 40 times. It is good that because have cost of investment province, operation,low, operation manages handy, odd mud to measure stability of little, craft (have very strong fight concussion bear ability) wait for a characteristic, the accord that project project got an user reputably.
The expert comments on:
Investment, moving cost is inferior the characteristic that is this project. Textile industry is one of trades with larger amount of liquid waste of course of study of knock off of our country platoon, among them 80% what discharge capacity of liquid waste of printing and dyeing takes discharge capacity of textile industry liquid waste, achieve left and right sides of 4 million stere everyday. Additional, the production of industry of printing and dyeing of our country spin already from a few big cities progressively to in small town move, and among them Zhejiang, Jiangsu, Shandong and Guangdong develop 4 times littoral the crop of the area, occupied 75% above of the whole nation, enterprise of printing and dyeing has the development tendency that divides a concentration, and rate of total liquid waste processing is at present inferior still. Liquid waste of printing and dyeing centers processing to already had better real requirement, this project technology has wide promotion application perspective.
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