Composting is a sustainable means of managing organic waste, and solar composters offer a viable solution in rural areas lacking connection to municipal power supplies. This study tracked the physicochemical and microbiological changes that occur in a solar composting greenhouse during the treatment of food and green cellulosic waste in fed-batch mode, which remain poorly understood. Solar composting greenhouse performed well on waste reduction and nutrient retention, resulting in a 45.0–58.8% decrease in feedstock volume over 12-day composting cycles, a 41% removal in dry matter after three batches of composting, and 29.5%, 252.9% and 96.6% increase in the nitrogen, phosphorus and potassium content respectively after 42 days of composting. Batch feeding and composting jointly influenced microbiological succession by altering the physicochemical properties of compost. The contents of nitrogen and phosphorus, pH, and electrical conductivity significantly accounts for variations in culturable microbial populations. The succession of dominant bacterial genera such as Lactobacillus, Pseudoxanthomonas, Bacillus, and Pseudomonas were closely related to pH, cellulose, NH₄⁺–N, carbon content, and temperature. In addition, Pichia kudriavzevii, Thermomyces lanuginosus, and Scopulariopsis brevicaulis successively became the dominant fungal species during composting. Preliminary compost quality assessments showed that solar composting greenhouse has a high potentiality to transform organic waste into organic fertilizer. Additionally, corresponding purposeful suggestions were proposed for future optimization in this system, mainly from a microbiological aspect.

堆肥是一种可管理有机废物的可持续手段，太阳能堆肥机在缺乏与市政电源连接的农村地区提供了可行的解决方案。这项研究追踪了在以补料分批方式处理食物和绿色纤维素废物过程中，太阳能堆肥温室中发生的物理化学和微生物变化，对此知之甚少。日光堆肥温室在减少废物和保持营养方面表现良好，在12天堆肥周期中使原料量减少了45.0–58.8％，三批堆肥后干物质去除了41％，分别为29.5％，252.9％和堆肥42天后，氮，磷和钾的含量分别增加了96.6％。分批进料和堆肥通过改变堆肥的理化特性共同影响微生物的演替。氮和磷的含量，pH值和电导率显着说明了可培养微生物种群的变化。优势细菌属如乳酸杆菌，假黄单胞菌，芽孢杆菌和假单胞菌与pH，纤维素，NH ₄ ⁺ -N，碳含量和温度密切相关。此外，在堆肥过程中，库氏毕赤酵母，嗜热单胞菌和短柄短吻鳄先后成为优势真菌。初步的堆肥质量评估表明，太阳能堆肥温室具有将有机废物转化为有机肥料的巨大潜力。另外，主要从微生物学方面出发，提出了针对该系统的未来优化的相应的有针对性的建议。