Treatment and resource technology for organic waste water

A technology for organic wastewater treatment and organic wastewater, applied in water/sewage treatment, water/sludge/sewage treatment, physical/chemical process catalyst, etc., can solve the problems of post-treatment, low hydrogen production efficiency and insignificant effect, etc. Achieve the effect of low wastewater treatment cost, high resource utilization efficiency and simple process

Inactive Publication Date: 2007-11-21
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main defect that still exists in anaerobic biotechnology is: the "post-treatment" problem caused by the difficulty of effluent water quality to meet the direct discharge standard
Although the use of fermentative bacteria to produce hydrogen has made great progress in my country, the stability and continuity of hydrogen production have always been an obstacle to the industrialization of hydrogen production.
However, in the actual operation process, it was found that the inhibition of each other during the hydrogen production process of the mixed bacteria and the feedback inhibition of the bacteria by the end product of the fermentation made the effect not obvious or even the problem of low hydrogen production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Add 5 grams of Raney nickel catalysts in the fixed-bed reactor, and the phenol solution containing 0.001mol / L flows through the reactor with a flow rate of 0.1mL / min (the liquid hourly space velocity is 1.41 hours -1 ), the adjustment reaction temperature is 270 ℃, reaction pressure 5.5MPa, the liquid collected at the reactor outlet is quantitatively analyzed with Shimadzu gas chromatography (FID, area normalization method), and the transformation rate of phenol is 100%; Gas chromatography (TCD, external standard method) detects that the productive rates of hydrogen and methane in the gas phase are respectively: 0.29 and 0.2 μmol / min, the content of carbon dioxide and carbon monoxide is below the chromatographic detection limit, and the selectivity of hydrogen is 27%.

Embodiment 2

[0039] Add 5 grams of Raney nickel catalysts in the fixed-bed reactor, and the phenol solution containing 0.001mol / L flows through the reactor with a flow rate of 0.05mL / min (the liquid hourly space velocity is 0.7 hours -1 ), the adjustment reaction temperature is 270 ℃, reaction pressure 5.5MPa, the liquid collected at the reactor outlet is quantitatively analyzed with Shimadzu gas chromatography (FID, area normalization method), and the transformation rate of phenol is 100%; Gas chromatography (TCD, external standard method) detects that the productive rates of hydrogen and methane in the gas phase are respectively: 0.14 and 0.1 μmol / min, the content of carbon dioxide and carbon monoxide is below the chromatographic detection limit, and the selectivity of hydrogen is 25%.

Embodiment 3

[0041] Add 5 grams of Raney nickel catalysts in the fixed-bed reactor, and the phenol solution containing 0.001mol / L flows through the reactor with a flow rate of 0.1mL / min (the liquid hourly space velocity is 1.41 hours -1 ), the adjustment reaction temperature is 260 ℃, and the reaction pressure is 4.7MPa, and the liquid collected at the reactor outlet is quantitatively analyzed by Shimadzu gas chromatography (FID, area normalization method), and the transformation rate of phenol is 100%; Gas chromatography (TCD, external standard method) detects that the productive rates of hydrogen and methane in the gas phase are respectively: 0.48 and 0.16 μmol / min, the content of carbon dioxide and carbon monoxide is below the chromatographic detection limit, and the selectivity of hydrogen is 43%.

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Abstract

A technology for treating organic waste water and resources is carried out by taking one or two or above organic waste water of phenol, aniline, toluene, butylenes oxide, cyclohexanol, N,N-dimethyl-formamide, methyl cyanide, methanol, methanol, methane acid etc. as raw materials, reform reacting organic substance with water at 180-350 degree under action of ranikel catalyst and 1-16 M pa and generating hydrogen, methane, carbon dioxide and carbon monoxide. It's cheap and efficient and has continuous or intermittent production.

Description

(1) Technical field [0001] The present invention relates to a treatment method and recycling technology of industrial organic waste water, in particular to phenol, aniline, toluene, tetrahydrofuran, cyclohexanol, N,N-dimethylformamide, acetonitrile, methanol, ethanol, formic acid A technology for the treatment and recycling of organic wastewater containing one or two or more organic substances. (2) Background technology [0002] Water is the source of life, the material basis for the survival and development of human beings and all other living things, and an important and precious resource for social and economic development. With the development of economy and the growth of population, the shortage of water resources has become a prominent environmental problem in contemporary society. my country has a per capita water volume of 2,200 cubic meters, which is less than one-third of the world's average level. It is one of the most water-scarce countries in the world; and ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00B01J25/02C02F101/30
Inventor 李小年项益智巫晓琼孔令鸟卢春山马磊张群峰丰枫袁俊锋
Owner ZHEJIANG UNIV OF TECH
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