LU Tao,ZHU Bao fei,SHI Chun mei,et al.Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use[J].China Water & Wastewater,2018,34(21):108-111.
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Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第34卷 Number: 21 Page: 108-111 Column: Date of publication: 2018-10-20
Article number:
1000-4602(2018)21-0108-04
Author(s):
LU Tao; ZHU Bao fei; SHI Chun mei; LIU Dan; CHI Bao hua; ZHONG Wei cong
(Xi’an Aerospace Yuan Dongli Engineering Co. Ltd., Xi’an 710100, China)
Keywords:
sewage sludge; carbonization; cleanliness; energy consumption; nutrient
CLC:
TU992.3
Document code:
C
Abstract:
A sewage sludge carbonization system and operational process was introduced. The operation energy consumption and the emission of pollutants were analyzed. Based on the investigation of sewage sludge carbon properties, the feasibility of sewage sludge carbon land use was discussed. The moisture content of sewage sludge feedstock was 80%, and its low calorific value was 3 871.5 kJ/kg. The average heat energy consumption of the system was 2 728.34 MJ/t, in which the syngas derived from sewage sludge was 287.52 MJ/t, the external heat quantity required was 2 440.82 MJ/t, and the power consumption was 79.2 kW·h/t. The exhaust gas reached the national standard through the dedusting system and the washing system. The heavy metals contents of sewage sludge carbon reached the control standards for agriculture use, afforestation in gardens or forest, and land improvement. The total nutrients content of the sewage sludge carbon was 1.94%, which was below the control standards for agriculture use, afforestation in gardens or forest, but was beyond the control standards for land improvement. Therefore, the sewage sludge carbon is suitable for land use and nutrients recycling.

References:


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Memo

作者简介：鲁涛（1984- ），男，陕西富平人，博士，工程师，主要从事市政污泥、含油污泥以及生活垃圾等固体废弃物处置技术研发工作。
E-mail:casc_lutao@126.com
收稿日期：2018-01-12

Last Update: 2018-11-01