Printing and dyeing wastewater treatment process
A technology for treating process, printing and dyeing wastewater, applied in textile industry wastewater treatment, multi-stage water treatment, water/sewage treatment and other directions, can solve the problems of difficult national discharge standards, cumbersome process, low COD removal rate, etc., to achieve convenient operation and use , good purification effect, reasonable design effect
Inactive Publication Date: 2015-04-01
TONGKUN GRP ZHEJIANG HENGTONG CHEM FIBER
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Problems solved by technology
[0002] The printing and dyeing wastewater produced during the chemical fiber production filament testing process is complex in composition, mixed with some oil agents and surfactants, and the COD concentration is relatively high. It is difficult to meet the national discharge standards with conventional biochemical treatment processes. The relative process of chemical precipitation and air flotation method is relatively cumbersome, and the removal rate of COD is low
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[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] Such as figure 1 As shown, in the printing and dyeing wastewater treatment process described in this example, the printing and dyeing wastewater is collected in the water storage adjustment tank, and then the wastewater in the water storage adjustment tank is introduced into the pre-reaction tank. In the pre-reaction tank, ferrous sulfate is first added to reduce the waste water The impurities are oxidized and decomposed, and the coagulant is added to the pre-reaction tank to condense the oxidized impurities, and then the wastewater in the pre-reaction tank is introduced into the middle reaction tank, and sodium hydroxide is added to the middle reaction tank to neutralize the acidity of the waste water and improve The reaction decolorization effect of wastewater, and then introduce the neutralized and decolorized wastewater into the separation tank, separate the...
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The invention discloses a printing and dyeing wastewater treatment process, and aims at providing a printing and dyeing wastewater treatment process with a good wastewater purification effect. The printing and dyeing wastewater treatment process comprises a water storage regulating reservoir, a pre-reaction tank, a medium reaction tank, a separation tank, a coagulation reaction tank, a settling tank, a clean-water reservoir and a sludge tank. The printing and dyeing wastewater treatment process has the characteristics of good purification effect, reasonable design and the like, and is convenient to use.
Description
technical field [0001] The invention relates to a wastewater treatment process, in particular to a printing and dyeing wastewater treatment process. Background technique [0002] The printing and dyeing wastewater produced during the chemical fiber production filament testing process is complex in composition, mixed with some oil agents and surfactants, and the COD concentration is relatively high. It is difficult to meet the national discharge standards by conventional biochemical treatment processes. The traditional chemical precipitation and air flotation methods are relatively cumbersome, and the COD removal rate is low. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art and provide a printing and dyeing wastewater treatment process with good wastewater purification effect. [0004] In order to achieve the above object, a kind of printing and dyeing wastewater treatment process designed by the presen...
Claims
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IPC IPC(8): C02F9/04C02F103/30
CPCC02F9/00C02F1/5236C02F1/5272C02F1/56C02F1/66C02F1/72C02F2103/30C02F2209/06C02F2301/08
Inventor 曹立国潘锋来炬华陆海梅钟利强
Owner TONGKUN GRP ZHEJIANG HENGTONG CHEM FIBER