添加脱油厨房废水对黑水虻幼虫生物转化厨房垃圾处理残渣的影响。
Effect of Adding De-Oiled Kitchen Water on the Bioconversion of Kitchen Waste Treatment Residue by Black Soldier Fly Larvae.
机构信息
College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 550025, China.
Research Center of Solid Waste Pollution Control and Recycling Engineering, Guizhou Minzu University, Guiyang 550025, China.
出版信息
Int J Environ Res Public Health. 2023 Jan 31;20(3):2577. doi: 10.3390/ijerph20032577.
With the continuous development of society, the output of kitchen waste (KW) is fast increasing. De-oiled kitchen water (DKW) and kitchen waste treatment residue (KWTR), two main by-products of the KW treatment industry, are produced accordingly on a large scale. The need to develop an effective technique for the utilization of DKW and KWTR is attracting wide attention. In the present study, black soldier fly larvae (BSFL) were employed as a biological treatment method to treat KWTR with the addition of DKW. The influence of DKW (0-140 mL) on the efficiency of BSFL treatment evaluated by the growth and development of BSFL, the body composition of BSFL, the nutrient content of bioconversion residue (BR), and the bioconversion efficiency of KWTR, was investigated. The results showed that the growth and development of BSFL, the body composition of BSFL, and the conversion rate of KWTR were initially promoted and then inhibited with the addition of DKW. Notably, the amount of DKW added in the T110 group was the most suitable for the growth of BSFL and the accumulation of body composition. Compared with the blank comparison group, the content of crude protein (CP), crude ash (CA), salinity, total phosphorus (TP), and dry matter (DM) of BSFL in the T110 group increased by 3.54%, 6.85%, 0.98%, 0.07% and 2.98%, respectively. However, the addition of DKW could steadily increase the nutrient content of BR, with the highest amount at 140 mL DKW. Following DKW addition, the contents of CP, ether extract (EE), crude fiber (CF), organic matter (OM), total nitrogen (TN), TP, and total potassium (TK) were increased by 4.56%, 3.63%, 10.53%, 5.14%, 0.73%, 0.75%, and 0.52%, respectively, compared with those of the blank comparison group. The study showed that DKW could be used as a nutrient additive in the bioconversion process of KWTR by BSFL, which provided a new method for the resource utilization of DKW.
随着社会的不断发展，餐厨垃圾（KW）的产量迅速增加。厨余废水（DKW）和厨余处理残渣（KWTR）是 KW 处理行业的两种主要副产物，因此大量产生。开发有效利用 DKW 和 KWTR 的技术引起了广泛关注。在本研究中，以黑水虻幼虫（BSFL）为生物处理方法，用 DKW 处理 KWTR。考察了 DKW（0-140ml）对 BSFL 生长发育、BSFL 体成分、生物转化残渣（BR）养分含量和 KWTR 生物转化率的影响，评价了 DKW 对 BSFL 处理效率的影响。结果表明，随着 DKW 的添加，BSFL 的生长发育、BSFL 体成分和 KWTR 的转化率均先促进后抑制。值得注意的是，T110 组添加的 DKW 量最适合 BSFL 的生长和体成分的积累。与空白对照组相比，T110 组 BSFL 粗蛋白（CP）、粗灰分（CA）、盐度、总磷（TP）和干物质（DM）含量分别提高了 3.54%、6.85%、0.98%、0.07%和 2.98%。然而，添加 DKW 可以稳定提高 BR 的养分含量，添加量为 140ml 时最高。随着 DKW 的添加，CP、乙醚提取物（EE）、粗纤维（CF）、有机物（OM）、总氮（TN）、TP 和总钾（TK）的含量分别比空白对照组增加了 4.56%、3.63%、10.53%、5.14%、0.73%、0.75%和 0.52%。研究表明，DKW 可作为 BSFL 转化 KWTR 过程中的营养添加剂，为 DKW 的资源利用提供了新方法。
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