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Evaluation of compost quality from municipal solid waste integrated with organic additive in Mizan–Aman town, Southwest Ethiopia
BMC Chemistry ( IF 4.6 ) Pub Date : 2021-07-19 , DOI: 10.1186/s13065-021-00770-1
Masresha Mamo 1 , Henok Kassa 1 , Lalit Ingale 1 , Stefaan Dondeyne 2
Affiliation  

The present study evaluated the compost quality from municipal solid waste (MSW) and organic additives of coffee by-products and leaf of Millettia ferruginea. Compost sample (n = 30) was taken from fresh compost materials and MSW and different organic additive treatments (T1, T2, T3, T4, and T5). Compost treatments phytotoxicity test was conducted using lettuce seed (Lactuca Sativa L. var. crispa). Analysis of variance (ANOVA) was performed using SPSS (version 22) on major compost quality characteristics. The compost Physico-chemical characteristics like temperature (26.4 °C), moisture content (45.5%), electrical conductivity (4.6 mS/cm), pH (7.9), total nitrogen (1.2%) and phosphorous content (2918 ppm) in T4 and T5 were analogous but both are significantly different from T3, T2 and T1 compost treatments. Phytotoxicity test using 100% compost treatment media showed that T4 (101%) and T5 (102%) are phytonutrient for lettuce plant. While, T3 and T2; and T1 compost treatments are non-phytotoxic and moderately phytotoxic respectively to lettuce plant. Therefore, compost from MSW + M. ferruginea (T4) and MSW + coffee pulp + M. ferruginea (T5) are important for improving the physico-chemical characteristics of compost and are phytonutrient for lettuce plant. Thus, for effectively management of the 75% of organic fraction of waste generated from households in the study area, recycling methods like composting with organic additives must be used at large.

中文翻译:

埃塞俄比亚西南部米赞-阿曼镇城市固体废物有机添加剂堆肥质量评价

本研究评估了来自城市固体废物 (MSW) 和咖啡副产品和 Millettia ferruginea 叶子的有机添加剂的堆肥质量。堆肥样品(n = 30)取自新鲜堆肥材料和 MSW 以及不同的有机添加剂处理(T1、T2、T3、T4 和 T5)。使用生菜种子(Lactuca Sativa L. var.crispa)进行堆肥处理的植物毒性试验。使用 SPSS(第 22 版)对主要堆肥质量特征进行方差分析 (ANOVA)。堆肥的物理化学特性,如温度 (26.4 °C)、水分含量 (45.5%)、电导率 (4.6 mS/cm)、pH (7.9)、总氮 (1.2%) 和 T4 中的磷含量 (2918 ppm)和 T5 类似,但都与 T3、T2 和 T1 堆肥处理显着不同。使用 100% 堆肥处理培养基的植物毒性试验表明,T4 (101%) 和 T5 (102%) 是生菜植物的植物营养素。同时,T3和T2;和 T1 堆肥处理分别对生菜植物无植物毒性和中等植物毒性。因此,来自 MSW + M. ferruginea (T4) 和 MSW + 咖啡果肉 + M. ferruginea (T5) 的堆肥对于改善堆肥的理化特性很重要,并且是生菜植物的植物营养素。因此,为了有效管理研究区域内家庭产生的 75% 的有机废物,必须广泛使用回收方法,如使用有机添加剂堆肥。因此,来自 MSW + M. ferruginea (T4) 和 MSW + 咖啡果肉 + M. ferruginea (T5) 的堆肥对于改善堆肥的理化特性很重要,并且是生菜植物的植物营养素。因此,为了有效管理研究区域内家庭产生的 75% 的有机废物,必须广泛使用回收方法,如添加有机添加剂的堆肥。因此,来自 MSW + M. ferruginea (T4) 和 MSW + 咖啡果肉 + M. ferruginea (T5) 的堆肥对于改善堆肥的理化特性很重要,并且是生菜植物的植物营养素。因此,为了有效管理研究区域内家庭产生的 75% 的有机废物,必须广泛使用回收方法,如使用有机添加剂堆肥。
更新日期:2021-07-19
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