The effect of precomposted sewage sludge mixture amended with biochar on the growth and reproduction of Eisenia fetida during laboratory vermicomposting

被引：83

作者：

Malinska, Krystyna ^{[1
]}

Zabochnicka-Swiatek, Magdalena ^{[1
]}

Caceres, Rafaela ^{[2
]}

Marfa, Oriol

机构：

[1] Czestochowa Tech Univ, Inst Environm Engn, Brzeznicka 60a, PL-42200 Czestochowa, Poland

[2] Res & Technol Food & Agr IRTA, GIRO Unit, Carretera Cabrils Km 2, Barcelona 08348, Spain

来源：

ECOLOGICAL ENGINEERING | 2016年 / 90卷

关键词：

Vermicomposting; Sewage sludge; Biochar; Eisenia fetida; Reproduction rate; Growth; NUTRIENT RECOVERY; SOLID FRACTION; CATTLE SLURRY; RABBIT MANURE; HEAVY-METALS; WASTE; BIOAVAILABILITY; STABILIZATION; SOIL; VERMISTABILIZATION;

D O I：

10.1016/j.ecoleng.2016.01.042

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The obtained results showed that the addition of biochar to the mixture of sewage sludge and wheat straw prior to composting facilitated the growth and reproduction of Eisenia fetida during laboratory vermicomposting of this mixture. After 4 weeks of vermicomposting the average number of produced cocoons in the mixtures amended with biochar increased by 13% for SS + ST + 4%B and 66% for SS + ST + 8%B. Also, the number of juvenile earthworms was higher in the mixtures amended with biochar. However, the total weight of earthworms declined with the depletion of organic matter after 18 weeks of the experiment. Amending sewage sludge mixtures with biochar for vermicomposting resulted in higher reproduction rates, and thus could allow faster and more efficient conversion of sewage sludge into vermicompost. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：35 / 41

页数：7

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