The Recovery of Vermicompost Sewage Sludge in Agriculture

被引:10
作者
Rusanescu, Carmen Otilia [1 ]
Rusanescu, Marin [2 ]
Voicu, Gheorghe [1 ]
Paraschiv, Gigel [1 ]
Biris, Sorin Stefan [1 ]
Popescu, Ileana Nicoleta [3 ]
机构
[1] Univ Politehn Bucuresti, Fac Biotech Syst Engn, 313 Spl Independentei, Bucharest 060042, Romania
[2] Valplast Ind, 9 Preciziei Blv, Bucharest 062202, Romania
[3] Valahia Univ Targoviste, Fac Mat & Mech Engn, 13 Aleea Sinaia, Targoviste 130004, Romania
来源
AGRONOMY-BASEL | 2022年 / 12卷 / 11期
关键词
vermicompost; sewage sludge; Eisenia fetida; Eisenia andrei; Eudrilus eugeniae; Perionyx excavatus agriculture; soil; heavy metals; EARTHWORMS EISENIA-FOETIDA; WASTE-WATER SLUDGE; HEAVY-METALS; STOCKING DENSITY; PLANT-GROWTH; VERMISTABILIZATION; STABILIZATION; DYNAMICS; YIELD; BIOCONVERSION;
D O I
10.3390/agronomy12112653
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Considering that worldwide the amount of sludge from sewage treatment plants has increased, which through storage pollutes the environment, solutions must be found for its management. In this paper, through an analysis of studies from the literature, we present an ecological method of recovery of sewage sludge (SS) in agriculture through vermicomposting with Eisenia etida, Eisenia andrei, Eudrilus eugeniae and Perionyx excavatus earthworms, thus we analyzed the possibility that sewage sludge can be transformed from waste into quality fertilizer that benefits the soil, plants, and people, thus being able to replace chemical fertilizers which, if applied to the soil, can acidify and pollute the soil and agricultural crops. We observed that the total nitrogen content of the phosphorus increased. Through the vermicomposting process, organic substances are rapidly decomposed and nitrogen mineralization is accelerated. We studied the impact of dewatered sewage sludge vermicomposting on pH value, electrical conductivity, porosity, moisture content, nitrogen content, water retention capacity, metal content, and the development of agricultural crops, highlighting the positive impact of vermicompost application on the soil. Adding vermicompost to the soil has been observed to improve plant development.
引用
收藏
页数:12
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