Laboratory of Process Engineering and Environment, Faculty of Science and Technology, University Hassan II of Casablanca, Morocco.
Laboratory of Ecology and Environment, Faculty of Science Semlalia, University Cadi Ayyad, Marrakech, Morocco; Higher Institute of Nursing Professions and Health Technics, Marrakech-Safi, Morocco.
Ecotoxicol Environ Saf. 2018 Dec 30;166:482-487. doi: 10.1016/j.ecoenv.2018.09.106. Epub 2018 Oct 9.
In this investigation, petroleum sludge landfilling was carried out in order to assess the biodegradation degree and the final product quality. The microbial analysis showed a good microorganism proliferation which reinforces the biodegradation process. The total mesophilic and thermophilic microflora evaluated symmetrically as they increased at the intermediate stage and decreased at the final. The C/N and NH/NOratios decreased while the polymerization degree increased at the end of the landfilling process. The total polyphenols and total petroleum C to Chydrocarbons were removed by 71.6% and 73% respectively, and that affected the reduction of the phytotoxicity in a positive way. All these changes are in agreement with the efficiency of the biotransformation process and showed that petroleum sludge and filling reduced the toxic organic compounds and led to a stable final product.
本研究通过石油污泥填埋来评估其生物降解程度和最终产物质量。微生物分析表明微生物大量繁殖，强化了生物降解过程。中温好氧和高温好氧微生物区系呈对称增加，在最后阶段减少。C/N 和 NH/NOratio 在填埋过程结束时降低，聚合度增加。总多酚和总石油 C 至 C 烃分别去除了 71.6%和 73%，这对减轻植物毒性有积极影响。所有这些变化都与生物转化过程的效率一致，表明石油污泥和填埋减少了有毒有机化合物，并导致了稳定的最终产物。
