Method for processing and resuing carbinol waste water for circulated cooling water

A technology of circulating cooling water and methanol, applied in the direction of adsorption water/sewage treatment, light water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of complex operation management and large investment, and achieve advanced system technology and reduce The effect of aeration volume and stable water output

Inactive Publication Date: 2007-07-11
NANKAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method requires large investment and complex operation and management

Method used

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  • Method for processing and resuing carbinol waste water for circulated cooling water

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Under the normal operating conditions of each process in the wastewater treatment system, the treatment effects of each wastewater treatment process after treatment are shown in Table 1.

[0026] Table 1 The running results of each process (hardness is expressed as CaCO 3 count)

[0027] Water quality project

flooded

Hydrolysis

Regulation pool

Microaerobic organisms

deal with

aerobic

biological treatment

coagulation sedimentation place

reason

BAC

reaction tower

UV disinfection

craft

CODcr (mg / l)

Methanol (%)

pH

Turbidity (degrees)

Conductivity

total hardness

total alkalinity

Ca 2+ (mg / L)

CI - (mg / L)

T-P(mg / L)

NH 3 -N (mg / L)

Total number of bacteria

(piece / mL)

456

3.7

9.1

24.3

198

177

135

31

70

1.94

0.7

Winter 8×10 6

Summer 3×10 7

403

2.2

7.7

26

187

169 ...

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Abstract

The invention discloses a recycling method of circulated cooling water of industrial wastewater with carbinol, which comprises the following steps: adopting hydrolytic adjusting pond; proceeding microbe contacting to oxidize; proceeding aerobic biological contact to oxidize; concreting; sedimenting; filtering through active charcoal; sterilizing through UV; adopting elastic cubic fill and microhole aerating system as fill of biological contact oxidizing course; decomposing organism with DO under 0.5-1. 0mg/l; removing CODcr, suspension and organism effectively.

Description

technical field [0001] The invention relates to the treatment and reuse of methanol industrial waste water, in particular to a method for treating methanol-containing waste water discharged from the production of methanol by a methanol plant and recycling it into circulating cooling water. Background technique [0002] Methanol is an important raw material in the production of pharmaceuticals, chemicals and pesticides. In the process of methanol production, the distillation raffinate discharged from the bottom of the rectification tower is usually called methanol wastewater. Methanol wastewater has a strong pungent odor, and its main components are methanol, ethanol, higher alcohols and aldehydes; it also contains some long-chain compounds. [0003] At present, the common methanol wastewater treatment methods include physical and chemical methods, chemical methods and biochemical methods, and these methods can treat methanol wastewater to varying degrees. Physicochemical a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F1/52C02F1/28C02F1/32
Inventor 肖羽堂
Owner NANKAI UNIV
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