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Nitrile glove production technological waste water treatment technological method

A production process and technology for nitrile gloves, which are applied in the field of treatment of wastewater from the production process of nitrile gloves, can solve problems such as inability to meet environmental protection policy requirements, and achieve the effects of stable treatment effect, reduced equipment investment and operating costs, and low pharmaceutical costs.

Inactive Publication Date: 2019-04-12
NANJING SHOUFAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

[0004] The object of the present invention is to provide a kind of treatment process method of nitrile glove production craft waste water, to solve the waste water that proposes in the above-mentioned background technology after treatment, each water quality of effluent only reaches " rubber product industrial pollutant discharge standard ", can not meet Issues with increasingly stringent environmental policy requirements

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  • Nitrile glove production technological waste water treatment technological method

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0036] see figure 1 , an embodiment provided by the present invention:

[0037] The initial water quality of nitrile glove production process wastewater produced by a company in Hebei is 400mg / L COD, 130mg / L BOD5, 300mg / L total nitrogen, 1200 mg / L salt content, 500mg / L SS, and 7-8.5 pH. Adopt the treatment method of a kind of nitrile glove production process waste water of the present invention to process it, design treatment capacity is 4500m3 / d, its main processing step is:

[0038] (1) The waste water passes through the 5mm mechanical grille, then through the water collection well and the primary sedimentation tank, and then is lifted to two 110m3 / h first-stage a...

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Abstract

The invention relates to a treatment method of nitrile glove production technological waste water, and belongs to the technical field of organic waste water treatment. The method comprises is characterized in that the waste water sequentially passes through a grating, a water collecting well, an initial sedimentation tank, a first-stage air flotation machine, a regulating tank, an ozone oxidationtank, a hydrolytic acidification tank, a first-stage A tank, an O tank, a second-stage A tank, a second-stage air floatation machine and a clear water tank, and the waste water is finally discharged after standards are reached. The method has the advantages that the operation cost is low, the operation is simple, suspended solid, COD, total nitrogen and the like in a nitrile glove production technology can be efficiently removed, and finally the waste water reaches the first-level A discharging standard of <Discharge Standard of Pollutants in Urban Sewage Treatment Plant> (GB 18918-2002).

Description

technical field [0001] The invention relates to a method for treating waste water in the production process of nitrile gloves, which belongs to the technical field of refractory organic waste water treatment. Background technique [0002] Nitrile glove production process wastewater mainly comes from "hand mold cleaning, primary leaching, secondary leaching, cooling mold, water inspection, equipment and ground washing" and other processes. Nitrile gloves are made of nitrile latex, which is made of butadiene and acrylonitrile by emulsion polymerization. Nitrile glove production process wastewater has certain biological toxicity. In addition, the BOD5:COD ratio of nitrile glove production process wastewater is less than 0.3, and its biodegradability is poor. At the same time, this type of wastewater also has the characteristics of high suspended solids, large water volume, and high chroma. It is currently one of the most difficult organic wastewater to treat. [0003] The pat...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30C02F103/34
CPCC02F1/001C02F1/24C02F1/52C02F1/725C02F1/78C02F3/302C02F9/00C02F2001/007C02F2101/30C02F2103/34
Inventor 刘水闫婷婷刘海洪
Owner NANJING SHOUFAN ENVIRONMENTAL PROTECTION TECH CO LTD
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