Method and device for treating high-concentration organic chemical-industrial sewage

A chemical wastewater, high-concentration technology, used in oxidized water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve problems such as poor treatment effect, improve purification efficiency, prevent the loss of dominant bacteria, The effect of enhancing the degradation activity

Inactive Publication Date: 2011-08-17
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide an integrated sewage treatment method of "physical and chemical pretreatment + biological enhancement treatment + flocculation and air flotation post-treatment" for the problem of poor treatment effect of traditional treatment technology for high-concentration refractory fine chemical sewage sewage and The device can realize high-efficiency and low-cost treatment of high-concentration fine chemical sewage

Method used

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  • Method and device for treating high-concentration organic chemical-industrial sewage
  • Method and device for treating high-concentration organic chemical-industrial sewage
  • Method and device for treating high-concentration organic chemical-industrial sewage

Examples

Experimental program
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Effect test

Embodiment 1

[0080] 1. The total inflow of high-concentration organic chemical sewage is 200L / h, and the antioxidant: p-hydroxybenzaldehyde: maleic anhydride: methyl ethyl ketone is influent at a ratio of 4:40:72:9, that is, the antioxidant is 6.4L / h. p-hydroxybenzaldehyde 64L / h, maleic anhydride 115L / h, methyl ethyl ketone 14.6L / h;

[0081] 2. Antioxidant, maleic anhydride, methyl ethyl ketone three kinds of acidic (pH2.0) sewage are lifted from the sewage storage tank by the metering pump to the iron carbon pool according to the flow rate (Fe: C = 1: 1.5 (weight ratio), the iron carbon bed is high 500mm) for micro-electrolysis reaction, the COD value of the mixed sewage is 53,000 mg / L, and the bottom of the iron-carbon pool is aerated and stirred at the same time, and the total reaction time is 150 minutes;

[0082] 3. After the reaction in the iron-carbon pool, the effluent enters the Fenton oxidation pool for oxidation reaction, and the H 2 o 2 The dosage is 6mL·L -1 , using the bot...

Embodiment 2

[0090] Adopt the same method as embodiment 1 to carry out sewage treatment, the difference is that in the step 6, adding bio-augmentation engineering bacteria in the hydrolytic acidification tank is (1.10 8 -10 9 Colonies / mL of GW1, GW2, GW5 strains mixed bacterial solution 10kg; ② petrochemical sewage plant sludge 500kg); adding bio-augmentation engineering bacteria to the contact oxidation tank is (①10 8 -10 9 Colonies / mL of GW1, GW2, GW5 strains mixed bacterial solution 16kg; ② petrochemical sewage plant sludge 500kg). Obtained the sewage treatment effect identical with embodiment 1.

Embodiment 3

[0092] Adopt the same method as Example 1 to carry out sewage treatment, the difference is that in the hydrolytic acidification tank in step 6, add bio-augmentation engineering bacteria as (1. Jiangsu Lvke Biotechnology Co., Ltd. EM bacteria freeze-dried powder 5kg (effective Viable bacteria ≥5×10 9 CFU / g); ② petrochemical sewage plant sludge 500kg); adding bio-enhanced engineering bacteria to the contact oxidation tank (① 5kg of EM bacteria freeze-dried powder purchased from the market (effective live bacteria ≥ 5× 10 9 CFU / g); ② petrochemical sewage plant sludge 500kg). Obtained the sewage treatment effect identical with embodiment 1.

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Abstract

The invention provides a method and a device for treating high-concentration organic chemical-industrial sewage. Specifically, the invention provides an integrated sewage treatment method of 'materialized pretreatment' plus 'biological intensification treatment' plus 'flocculating air-flotation aftertreatment' as well as a sewage treatment device. The sewage treatment method and the sewage treatment device can realize high-efficient and low-cost treatment of chemical-industrial sewage which has high COD (Chemical Oxygen Demand) and is difficult to degrade.

Description

technical field [0001] The invention relates to the technical field of high-concentration chemical sewage treatment, in particular to a treatment method and device for high-concentration refractory fine chemical sewage. Background technique [0002] The organic chemical factories and organic additive factories of petrochemical enterprises occupy an important position in petroleum enterprises, and their products are mainly some important chemical reagents, chemical intermediate products, or monomers for the production of synthetic materials, which are not available in the petrochemical product chain. be lacked. The products of these enterprises are characterized by high added value, variety of products, intermittent production of devices, and small investment in production equipment. Therefore, in the process of product production, the water quality of the discharged sewage is relatively complex, with a wide variety of pollutants, high COD content of sewage (up to hundreds o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/72C02F1/461
Inventor 陈进富赵立军王祖佑陈怡
Owner BC P INC CHINA NAT PETROLEUM CORP
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