Zhang Zhaochang, Chen Liqi, Yang Kunlun, Wang Tao, Wang Yuting, Jia Yifan, Yin Yijiang, Gu Peng, Miao Hengfeng
School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China.
Jiangsu Engineering Laboratory of Biomass Energy and Carbon Reduction Technology, Jiangnan University, Wuxi 214122, China.
Insects. 2022 Jul 28;13(8):683. doi: 10.3390/insects13080683.
Black soldier fly is a saprophagous insect that has been widely reported in recent years due to its excellent performance in bioremediation. Due to the widespread presence of flocculants in the organic waste treated by black soldier fly larvae, this study aimed to evaluate the potential impacts and risks of flocculant addition (a combination of poly aluminum chloride and polyacrylamide with the ratio of 50:1). Results showed that the growth and weight of BSFL in the high-exposure groups (≥200 mg/L) were inhibited. The bioaccumulation of aluminum (Al) in larvae was estimated, and the proportions of different Al forms in the frass from high to low were the residual state (41.38% to 67.92%), water-soluble state (16.88% to 37.03%), acid-soluble state (8.45% to 18.72%), and alkali-soluble state (3.38% to 5.14%). The relative abundance of bacterial genera related to lipid metabolism decreased with increasing flocculant concentrations while disease-related taxa increased in relative abundance. The results serve as a reference for subsequent research and application of the treatment of flocculant-contaminated waste by BSFL.
黑水虻是一种腐食性昆虫，近年来因其在生物修复方面的出色表现而被广泛报道。由于黑水虻幼虫处理的有机废物中普遍存在絮凝剂，本研究旨在评估添加絮凝剂（聚合氯化铝和聚丙烯酰胺比例为50:1的组合）的潜在影响和风险。结果表明，高暴露组（≥200 mg/L）中黑水虻幼虫的生长和体重受到抑制。估算了幼虫中铝（Al）的生物累积情况，粪便中不同铝形态的比例从高到低依次为残留态（41.38%至67.92%）、水溶态（16.88%至37.03%）、酸溶态（8.45%至18.72%）和碱溶态（3.38%至5.14%）。与脂质代谢相关的细菌属的相对丰度随着絮凝剂浓度的增加而降低，而与疾病相关的分类群相对丰度增加。这些结果可为后续黑水虻处理受絮凝剂污染废物的研究和应用提供参考。
