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A comprehensive treatment process and system for ammonia-containing organic waste gas and ammonia-containing organic wastewater

A technology for organic waste water and organic waste gas, applied in gas treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as exhaust gas temperature higher than 200°C, complicated process, high equipment investment cost, and achieve Effects of no fuel consumption, condensation prevention, and no denitrification agent consumption

Active Publication Date: 2020-03-31
JIANGSU DAXIN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the waste gas and waste water are treated by the general combustion method, there is no process flow that can be reasonably combined with the treatment, and there are problems such as high fuel consumption, complicated process, high equipment investment cost, low treatment efficiency, and exhaust gas temperature higher than 200°C
The difficulty of harmless treatment of such waste gas and waste water has always troubled manufacturers

Method used

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  • A comprehensive treatment process and system for ammonia-containing organic waste gas and ammonia-containing organic wastewater
  • A comprehensive treatment process and system for ammonia-containing organic waste gas and ammonia-containing organic wastewater

Examples

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Embodiment 1

[0042] A kind of comprehensive treatment process of ammonia-containing organic waste gas and ammonia-containing organic waste water of the present invention, it comprises the following steps,

[0043] (1) Separately collect organized ammonia-containing waste gas, unorganized ammonia-containing waste gas and ammonia-containing organic wastewater;

[0044] (2) The ammonia-containing organic wastewater is sent to the forced heater through the forced circulation pump, and the waste heat in the flue gas is recovered. The temperature of the ammonia-containing organic wastewater is raised into high-temperature ammonia-containing organic wastewater, and the high-temperature ammonia-containing organic wastewater is sent to the spray evaporator Spray evaporation is carried out to evaporate most of the water and ammonia in the wastewater into ammonia-containing water vapor. The temperature of the ammonia-containing water vapor is 90°C. The evaporation of water increases the concentration ...

Embodiment 2

[0053] A kind of comprehensive treatment process of ammonia-containing organic waste gas and ammonia-containing organic waste water of the present invention, it comprises the following steps,

[0054] (1) Separately collect organized ammonia-containing waste gas, unorganized ammonia-containing waste gas and ammonia-containing organic wastewater;

[0055] (2) The ammonia-containing organic wastewater is sent to the forced heater through the forced circulation pump, and the waste heat in the flue gas is recovered. The temperature of the ammonia-containing organic wastewater is raised into high-temperature ammonia-containing organic wastewater, and the high-temperature ammonia-containing organic wastewater is sent to the spray evaporator Spray evaporation is carried out to evaporate most of the water and ammonia in the wastewater into ammonia-containing water vapor. The temperature of the ammonia-containing water vapor is 90°C. The evaporation of water increases the concentration ...

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Abstract

The invention relates to a comprehensive treatment technology and system for ammonia containing organic waste gas and ammonia containing organic waste water. The comprehensive treatment technology comprises the steps that high-temperature furnace inflow waste gas is conveyed into an RTO heat accumulation type incinerator through a waste gas draught fan to be incinerated, and clean smoke is subjected to nitrogen oxide catalytic reduction through an SCR reactor. The comprehensive treatment system comprises the RTO heat accumulation type incinerator, a waste gas mixer is arranged at the front endof the RTO heat accumulation type incinerator, a mixer is arranged at the rear end of the RTO heat accumulation type incinerator and connected with a metal filter, the metal filter is connected withthe SCR reactor, the SCR reactor is connected with a plate heat exchanger, and the plate heat exchanger is connected with a forcing heat exchanger. Low-temperature smoke waste heat is circularly utilized, the furnace feeding temperature is increased, the exhaust temperature of an incinerator system is increased and meets the smoke catalysis denitration technology requirement, no fuel consumption and no denitration agent consumption are achieved, waste water can be treated while waste gas is treated, and secondary pollutants are avoided.

Description

technical field [0001] The invention relates to a process and system for treating waste gas and waste water, in particular to a process and system for treating waste gas and waste water containing ammonia. Background technique [0002] Ammonification process and cyanidation process are commonly used chemical processes. The waste gas produced by the reaction has complex components. In addition to excessive free ammonia required for chemical reactions, it generally contains cyanide, nitrogen oxides, nitrile organic compounds, and amides. organic matter. Dilute sulfuric acid neutralization absorption method is generally used to treat this kind of waste gas and by-product ammonium sulfate. The cyanide and other substances in the waste gas will cause by-product ammonium sulfate to contain impurities such as cyanate, resulting in the by-product ammonium sulfate being a hazardous solid waste. , not only has no use value, but also increases the cost of subsequent hazardous waste tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/06F23J15/02F23G5/46C02F1/12B01D53/90B01D53/56C02F101/30C02F101/16
CPCB01D53/8625B01D53/90B01D2251/2062B01D2258/0283C02F1/12C02F2101/16C02F2101/30C02F2303/10F23G5/46F23G7/066F23J15/025
Inventor 董小平周金花魏桃
Owner JIANGSU DAXIN ENVIRONMENTAL SCI & TECH
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