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Biomass gasification wastewater treatment method and device

A treatment method and a treatment device technology, applied in the direction of oxidized water/sewage treatment, water/sewage treatment, anaerobic digestion treatment, etc., can solve the problems of weak impact load resistance and poor treatment effect, and achieve the effect of improving the effect

Pending Publication Date: 2017-03-22
GO HIGHER ENVIRONMENT GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For this reason, what the present invention is to solve is that the biomass gasification wastewater treatment process has the defects of poor treatment effect and weak impact load resistance, and then provides a biomass gasification wastewater treatment process with good treatment effect and strong impact load resistance. Processing method and device

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  • Biomass gasification wastewater treatment method and device

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Embodiment 1

[0043] This embodiment provides a treatment method for biomass gasification wastewater. The processing method includes the following steps:

[0044] (1) Biomass gasification wastewater enters the oil separation device for oil separation treatment to remove floating oil and most of the suspended matter; then enters the first coagulation device and air flotation device to remove emulsified oil and suspended matter; then Enter the first ozone oxidation treatment device with an ozone dosage of 5mg / L for the first ozone oxidation treatment to remove residual polycyclic aromatic hydrocarbons and cyanide in the wastewater, reduce its toxicity to the subsequent biochemical treatment process, and ensure The subsequent biochemical treatment device runs stably, and finally collects the first effluent after pretreatment. Among them, the biomass gasification wastewater is a biomass gasification wastewater from a factory, with a COD of 1800mg / L, a BOD of 400mg / L, ammonia nitrogen (calculate...

Embodiment 2

[0049] This embodiment provides a treatment method for biomass gasification wastewater. The processing method includes the following steps:

[0050] (1) Biomass gasification wastewater enters the oil separation device for oil separation treatment to remove floating oil and most of the suspended matter; then enters the first coagulation device and air flotation device to remove emulsified oil and suspended matter; then Enter the first ozone oxidation treatment device with an ozone dosage of 5mg / L for the first ozone oxidation treatment to remove residual polycyclic aromatic hydrocarbons and cyanide in the wastewater, reduce its toxicity to the subsequent biochemical treatment process, and ensure The subsequent biochemical treatment device runs stably, and finally collects the first effluent after pretreatment. Among them, the biomass gasification wastewater is a biomass gasification wastewater from a factory, with a COD of 500mg / L, a BOD of 200mg / L, ammonia nitrogen (calculated...

Embodiment 3

[0055] This embodiment provides a treatment method for biomass gasification wastewater. The processing method includes the following steps:

[0056] (1) Biomass gasification wastewater enters the adjustment tank for homogeneous and even volume adjustment; then enters the oil separation device for oil separation treatment to remove floating oil and most of the suspended matter; then enters the first coagulation device and gas In the floating device, emulsified oil and suspended matter are removed; then enter the pH adjustment device, adjust the pH to 10 by adding sodium hydroxide to it, and then enter the ammonia nitrogen stripping device to remove ammonia nitrogen; finally enter the ozone dosage is 4mg / L of the first ozone oxidation treatment device to carry out the first ozone oxidation treatment to remove the residual polycyclic aromatic hydrocarbons and cyanide in the wastewater, reduce its toxicity to the subsequent biochemical treatment process, and ensure the stable ope...

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Abstract

The invention discloses a biomass gasification wastewater treatment method and device. The treatment method comprises the following steps: (1) pretreatment: performing oil removal treatment, first coagulation treatment, flotation treatment and first ozone oxidation treatment on biomass gasification wastewater to obtain first effluent water; (2) biochemical treatment: sequentially performing anaerobic treatment and A / O (anoxic / oxic) biological catalytic oxidation treatment on the first effluent water, and collecting second effluent water; and (3) advanced treatment: sequentially performing second coagulation treatment and membrane separation treatment on the second effluent water to obtain up-to-standard effluent water. The device comprises an oil removal device, a first coagulation device, a flotation device, a first ozone oxidation treatment device, an anaerobic treatment device, an A / O biological catalytic oxidation device, a second coagulation device and a membrane separation device which sequentially communicate with each other. The method and device have the characteristics of favorable wastewater treatment effect and high anti-shock loading capability, and can effectively treat biomass gasification wastewater; and the treated effluent water has favorable water quality.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a treatment method and device for biomass gasification wastewater. Background technique [0002] Biomass gasification is one of the necessary processes for biomass oil production. Under certain thermodynamic conditions, with the help of air, oxygen, and water vapor, the high polymers in biomass undergo pyrolysis, oxidation, and reduction. Reforming reaction, the process of finally converting biomass combustible gas such as carbon monoxide, hydrogen and low molecular hydrocarbons. In the process of biomass gasification, in order to purify biomass combustible gas, a large amount of biomass gasification wastewater will be produced. This wastewater is a high-concentration refractory organic wastewater, which is gray-black and has a strong pungent smell. The composition of it is very complex. , direct discharge will seriously pollute the environment. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16C02F101/32
CPCC02F9/00C02F2101/327C02F2101/16C02F3/30C02F3/28C02F1/5245C02F1/78C02F1/56C02F1/40C02F1/24
Inventor 陈福泰褚永前郝福锦杨梦阳
Owner GO HIGHER ENVIRONMENT GRP CO LTD
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