ABSTRACT

The efficiency of the composting process for tomato residues and chicken manure was estimated after monitoring of the rotary composting system. Physicochemical parameters and Compost Quality Index were evaluated. The tomato residues (leaves, stems, and some green and damaged fruits) were collected, cut into small pieces, moistened approximately (60–65%), and mixed with 20% chicken manure then distributed into three rotary drum bioreactors. The obtained results showed that, the temperature above 50°C was maintained for more than two days. Carbon: nitrogen (C:N) ratio was reduced from 30:1 to 19.13:1. The pH value ranged between 7 and 8.80 during the composting process, while the electrical conductivity (EC) ranged between 2.67 to 4.53 dS/m. Both compost quality parameters (Dewar and germination index) and (Solvita-CO₂ and Solvita-NH₃) indicated that, the final compost is stable and mature.

Implications: The idea of this research revolves around assessing the maturity and stability of the compost resulting from mixing tomato residues with chicken manure, using a rotary drum bioreactor which is characterized by reducing the time of the active phase to several hours or days instead of weeks or months. Several tests related to the maturity and stability of mixture have been used to judge its quality. Also, many parameters related to this topic were monitored and discussed with many previous researches to determine the importance of benefiting from mixing the different wastes together and obtaining a good fertilizer ready for application as an agricultural substrate or a soil conditioner.

摘要

在对旋转堆肥系统进行监测后，对番茄残渣和鸡粪的堆肥过程的效率进行了评估。评估了理化参数和堆肥质量指数。收集番茄残留物（叶、茎和一些绿色和损坏的果实），切成小块，润湿约（60-65%），与 20% 的鸡粪混合，然后分配到三个转鼓生物反应器中。得到的结果表明，50℃以上的温度维持了两天多。碳:氮 (C:N) 比从 30:1 降低到 19.13:1。在堆肥过程中，pH 值介于 7 和 8.80 之间，而电导率 (EC) 介于 2.67 至 4.53 dS/m 之间。堆肥质量参数（杜瓦瓶和发芽指数）和（Solvita-CO ₂和 Solvita-NH ₃ ) 表明，最终堆肥是稳定和成熟的。

意义：这项研究的想法围绕评估由番茄残留物与鸡粪混合产生的堆肥的成熟度和稳定性，使用转鼓生物反应器，其特点是将活性阶段的时间减少到几个小时或几天而不是几周或几个月。一些与混合物的成熟度和稳定性相关的测试已被用于判断其质量。此外，与该主题相关的许多参数也与之前的许多研究进行了监测和讨论，以确定从将不同废物混合在一起并获得可用作农业基质或土壤改良剂的优质肥料中获益的重要性。