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- Title
污泥生物炭在土壤改良中的应用研究.
- Authors
王旭东; 任雪冰; 汤舒; 郭琴; 薛梦瑶; 金鹏; 张云华
- Abstract
With the rapid development of industrialization and urbanization, sludge, as a by-product of sewage treatment, is increasing in yield. Organic pollutants and heavy metals in sludge taking some difficulties to make sludge harmless and resourceful. The biochar produced from sludge pyrolysis is a new way of sludge treatment in recent years, which has the advantages of stability, reduction and recycling. Sludge biochar is a kind of soil improvement material with good performance, which can improve the physical and chemical properties of soil, such as bulk density, pH, cation exchange capacity, heavy metal content, etc. In addition, Sludge biochar can also improve soil fertility and promote plant growth. This study summarized the composition of the sludge source and biochar sludge pyrolysis mode of production and characterization, and discussed the sludge biochar application of heavy metals on soil physical and chemical properties and the influence of mechanism. The research and application progress of single and cothermal sludge biochar were analyzed, and the main problems and future development direction of sludge biochar for soil improvement were put forward.
- Subjects
SEWAGE purification; BIOCHAR; HEAVY metals; PLANT fertility; CHEMICAL properties; SOIL fertility
- Publication
Journal of Agricultural Science & Technology (1008-0864), 2023, Vol 25, Issue 6, p165
- ISSN
1008-0864
- Publication type
Article
- DOI
10.13304/j.nykjdb.2021.1025