Comparative study of sludge thermophilic drying technology under the dual carbon strategy
Carbon emission during the sludge treatment and disposal process is an important source of carbon emission in the sewage treatment industry. The drying process can achieve the reduction and stabilization of sludge, reducing its adverse impact on the environment. Aiming at the problems of reduction a...
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Veröffentlicht in: | Gong ye shui chu li 2024-10, Vol.44 (10), p.215-221 |
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Format: | Artikel |
Sprache: | chi |
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Zusammenfassung: | Carbon emission during the sludge treatment and disposal process is an important source of carbon emission in the sewage treatment industry. The drying process can achieve the reduction and stabilization of sludge, reducing its adverse impact on the environment. Aiming at the problems of reduction and resourceization in the process of municipal sludge treatment, municipal sludge with water content of 40%-80% was taken as the research object, and a multi-dimensional evaluation of the disc drying and low-temperature drying technologies was carried out by comparing and analyzing the working principle, economic cost, carbon emission, and other indexes. The results showed that the low temperature drying technology had better condensate quality, lower wastewater treatment cost, less odor volume and simple composition. Disc drying technology process was mature, adapted to large-scale sludge disposal project, low investment cost, simple structure, small footprint, low performance decay rate, and stable operation. In |
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ISSN: | 1005-829X |
DOI: | 10.19965/j.cnki.iwt.2023-1222 |