Microbial community succession in response to sludge composting efficiency and heavy metal detoxification during municipal sludge composting.

This study researched microbial community succession in response to sludge composting efficiency and heavy metal detoxification during municipal sludge co-composting with spent mushroom and spent bleaching. The change law of key physicochemical properties, the heavy metals contents and forms during composting were analyzed, and the passivation of heavy metals after composting was explored. High-throughput sequencing was used to analyze the microbial community structure of treat 2 during composting, and the correlation analysis of microbial community structure with heavy metal contents and forms were carried out.

Monohydroxycucurbit[7]uril-coated stir-bar sorptive extraction coupled with high-performance liquid chromatography for the determination of apolar and polar organic compounds.

A detailed study has been carried out on monohydroxycucurbit[7]uril-based stir-bar sorptive extraction (SBSE). A polydimethylsiloxane coating was produced by a sol-gel technique and doped with monohydroxycucurbit[7]uril ((HO)Q [7]) as a selective sorbent phase. (HO)Q [7] was chemically bound to the sol-gel silica substrate through hydrolysis and polycondensation.