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Sludge composting odor control method and system thereof

A control method and odor technology, applied in the general control system, control/regulation system, fertilizer treatment control, etc., can solve the problems of large contribution to total odor and low threshold, so as to reduce emissions, reduce deodorization volume, The effect of reducing project investment and operating costs

Inactive Publication Date: 2020-10-02
NISHIHARA ENVIRONMENT ENG SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although sulfur-containing malodorous compounds such as hydrogen sulfide, methyl mercaptan, methyl sulfide, and dimethyl disulfide (DMDS) are produced in less amounts than NH 3 , but their threshold is very low and thus contributes significantly to the total odor

Method used

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Embodiment Construction

[0031] In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail through the following specific embodiments. Process method of the present invention except following content, all the other all adopt the routine method or device of this field. Unless otherwise specified, the following nouns and terms have the meanings commonly understood by those skilled in the art.

[0032] On the one hand, the sludge composting odor control method of the present invention includes: a temperature real-time online monitoring system monitors the temperature of the pile body in real time, and the intelligent monitoring system adjusts the operation of the blower under the pile body in real time according to the change of the pile body temperature; An odor monitoring system is installed in the oxygen fermentation equipment to monitor the odor concentration in real time and transmit the signal to the central control sys...

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Abstract

The invention belongs to the technical field of environmental protection, and relates to a sludge composting odor control method and a system thereof. The sludge composting odor control method comprises the following steps that: a temperature real-time online monitoring system monitors the temperature of a pile body in real time, and an intelligent monitoring system adjusts the operation of an airblower below the pile body in real time according to the change of the temperature of the pile body; an odor monitoring system is arranged in intelligent aerobic fermentation equipment to monitor theodor concentration in real time and transmit a signal to a central control system so as to control the operation of a deodorization system. According to the sludge composting odor control method andthe system thereof, through the temperature real-time on-line monitoring system and the intelligent control system, the operation frequency and time of the air blower can be adjusted in real time according to the temperature change of the pile body, and the aerobic state of the pile body and the harmless temperature requirement of harmful substances are fully guaranteed. Due to the fact that the optimal oxygen supply mode is adopted, it is avoided that a large amount of foul gas is released due to anaerobic treatment of the pile body, and the emission amount of foul gas is reduced from the source.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to composting odor control, in particular to a sludge composting odor control method and a system thereof. Background technique [0002] Composting treatment is the main means of urban sludge reduction, harmlessness and resource utilization. How to control the odor generated in the operation of sludge composting plants, there is no good solution at present. In the 1960s, many municipal sludge composting plants in the United States were forced to close down due to odor problems. In recent years, my country has successively built a number of sludge treatment plants, but almost none of them have solved the problem of odor control well during the construction. In order to reduce the impact of the sludge composting plant on the surrounding environment of the plant, the deodorization system of the composting plant must be redesigned. [0003] When there is enough oxygen i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00C05F17/70C05F17/90C05F17/993C05F17/979C02F11/02G05B15/02F04D27/00
CPCC05F7/00C05F17/70C05F17/90C05F17/993C05F17/979C02F11/02G05B15/02F04D27/008F04D27/004F05D2270/303Y02W30/40Y02A40/20
Inventor 杨国平封敏赵欣平
Owner NISHIHARA ENVIRONMENT ENG SHANGHAI CO LTD