Title:
METHOD FOR MEASURING AND CALCULATING SLUDGE CALORIFIC VALUE BASED ON SLUDGE VOLATILE CONTENT
Document Type and Number:
WIPO Patent Application WO/2021/114112
Kind Code:
A1
Abstract:
A method for measuring and calculating a sludge calorific value based on sludge volatile content. The method comprises: calculating the volatiles of various samples and calorific values corresponding to the samples; establishing an XY plane rectangular coordinate system; determining each point corresponding to each sludge sample in the XY plane rectangular coordinate system by using a volatile ((A%) as a value of an X coordinate and a calorific value (Q) as a value of a Y coordinate; and sequentially fitting and connecting the points to form a curve from low to high according to the volatiles, so as to obtain a sludge volatile-calorific value curve (A%-Q). For any kind of sludge to be measured, as long as the volatile A% to be measured of the sludge is first calculated, the A% to be measured is substituted into an X axis according to the obtained sludge volatile-calorific value curve (A%-Q), so that a corresponding calorific value Q (i.e., the value of the Y coordinate) can be directly found in the curve. The present invention can effectively solve the problems of high cost, high workload intensity, high requirements for the operating proficiency of technicians and the like caused by measuring the sludge calorific value by using a heat capacity method.
Inventors:
CHEN SIYANG (CN)
Application Number:
PCT/CN2019/124408
Publication Date:
June 17, 2021
Filing Date:
December 10, 2019
Export Citation:
Assignee:
SHENZHEN ENERGY ENV ENG CO LTD (CN)
International Classes:
G01N5/04; G01N7/16; G01N25/00
Foreign References:
| CN108287231A | 2018-07-17 | |||
| CN106324029A | 2017-01-11 | |||
| CN107290245A | 2017-10-24 | |||
| CN108548910A | 2018-09-18 | |||
| BR201107321A2 |
Other References:
MA, SHU: "Analysis and Research on Determination of Energy Value of WWTP Wastewater and Sludge", WANFANG DATA KNOWLEDGE SERVICE PLATFORM, 1 April 2007 (2007-04-01), pages 1 - 82, XP055820728, [retrieved on 20210702]
GUO JINSONG, FAN YING, GAO XU, LIU ZHI-PING, MA SHU: "The Effect of Volatile Component on the Heat Value of Wastewater and Sludge Samples from WWTP", JOURNAL OF CHONGQING UNIVERSITY, vol. 33, no. 11, 1 November 2010 (2010-11-01), pages 135 - 138, XP055820745
GUO KAI, LI ZHI-GUANG; PENG HAI-JUN; SU MENG-FEI; XIA XING-LIANG: "Research on Calorific Value of Disintegration-Membrane Dehydration Municipal Sludge", CHEMISTRY & BIOENGINEERING - HUAXUE YU SHENGWU GONGCHENG, HUBEI SHENG HUAXUE GONGYE YANJIU SHEJIYUAN, CN, vol. 31, no. 12, 25 December 2014 (2014-12-25), CN, pages 58 - 62, XP055820747, ISSN: 1672-5425
1 May 2003, article ZHOU, XIAHAI: "Study on the Process of the Sludge Incineration in Stuttgart Wastewater Treatment Plant", pages: 1 - 90, XP055820748
GUO JINSONG, FAN YING, GAO XU, LIU ZHI-PING, MA SHU: "The Effect of Volatile Component on the Heat Value of Wastewater and Sludge Samples from WWTP", JOURNAL OF CHONGQING UNIVERSITY, vol. 33, no. 11, 1 November 2010 (2010-11-01), pages 135 - 138, XP055820745
GUO KAI, LI ZHI-GUANG; PENG HAI-JUN; SU MENG-FEI; XIA XING-LIANG: "Research on Calorific Value of Disintegration-Membrane Dehydration Municipal Sludge", CHEMISTRY & BIOENGINEERING - HUAXUE YU SHENGWU GONGCHENG, HUBEI SHENG HUAXUE GONGYE YANJIU SHEJIYUAN, CN, vol. 31, no. 12, 25 December 2014 (2014-12-25), CN, pages 58 - 62, XP055820747, ISSN: 1672-5425
1 May 2003, article ZHOU, XIAHAI: "Study on the Process of the Sludge Incineration in Stuttgart Wastewater Treatment Plant", pages: 1 - 90, XP055820748
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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