Department of Agricultural Engineering, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.
Department of Agriculture and Biosystems Engineering, Faculty of Agriculture, Alexandria University, Alexandria, Egypt.
J Air Waste Manag Assoc. 2021 May;71(5):529-539. doi: 10.1080/10962247.2020.1859416. Epub 2021 Mar 4.
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-CO and Solvita-NH) indicated that, the final compost is stable and mature.: 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.
对番茄残渣和鸡粪的旋转堆肥系统进行监测后，估算了堆肥过程的效率。评估了理化参数和堆肥质量指数。收集番茄残渣（叶子、茎和一些绿色和受损的果实），切成小块，加湿至约（60-65%），与 20%鸡粪混合，然后分配到三个旋转滚筒生物反应器中。所得结果表明，温度超过 50°C 保持了两天以上。碳氮比（C:N）从 30:1 降低到 19.13:1。堆肥过程中 pH 值在 7 到 8.80 之间，而电导率（EC）在 2.67 到 4.53 dS/m 之间。堆肥质量参数（Dewar 和发芽指数）和（Solvita-CO 和 Solvita-NH）均表明，最终堆肥稳定成熟。本研究的思路是评估使用旋转滚筒生物反应器将番茄残渣与鸡粪混合产生的堆肥的成熟度和稳定性，该生物反应器的特点是将活跃阶段的时间从数周或数月缩短到数小时或数天。使用了与成熟度和稳定性相关的多项测试来判断其质量。还监测和讨论了许多与该主题相关的参数，并与许多以前的研究进行了比较，以确定将不同废物混合在一起并获得一种适合作为农业基质或土壤改良剂应用的优质肥料的重要性。
