Lipid Metabolic Disorder Induced by Pyrethroids in Nonalcoholic Fatty Liver Disease of .

Pyrethroids, an effective and widely used class of pesticides, have attracted considerable concerns considering their frequent detection in environmental matrices. However, their potential health risks to amphibians remain unclear. In our study, female were exposed to 0, 0.

Specific component comparison of extracellular polymeric substances (EPS) in flocs and granular sludge using EEM and SDS-PAGE.

Extracellular polymeric substances (EPS) plays an important role in the formation of bioaggregates such as flocs, biofilm and granular sludge. However, the role of their specific components in sludge flocculation and granulation is still unclear. Three sludge samples including the flocs, aerobic and anaerobic granular sludge were investigated in this study and the specific components in different EPS structures of loosely bound-EPS (LB-EPS) and tightly bound-EPS (TB-EPS) were analyzed.

The stability of aerobic granular sludge under 4-chloroaniline shock in a sequential air-lift bioreactor (SABR).

The aerobic granular sludge technology has a great potential in treatment of municipal wastewater and industrial wastewater containing toxic non-degradable pollutants. However, the formation and structural stability of aerobic granular sludge is susceptible to toxic shock. In the study, the effect of 4-chloroaniline (4-ClA) as a common toxic pollutant on the granular structure and performance was investigated, and the mechanism was revealed to provide more information on 4-ClA degradation with aerobic granular sludge process.

Correlation analysis of major control factors for the formation and stabilization of aerobic granule.

In recent years, aerobic granular sludge technology has demonstrated significant advantages in areas such as the sludge-water separation, residual sludge minimization, simultaneous biological nitrogen and phosphorus removal, and toxic organic compounds degradation in biological wastewater treatment. However, the critical control factors and their relation during sludge granulation have not been revealed indeed, and the stability of aerobic granular sludge is still not good. The Gray's correlation analysis was used to investigate the relationship of aerobic granular characteristics and control factors in the study.

Component analysis of extracellular polymeric substances (EPS) during aerobic sludge granulation using FTIR and 3D-EEM technologies.

In recent years, lots of the extracellular polymeric substances (EPS) related researches have focused on its role in the granulation and structural stability of aerobic sludge. Three-dimensional fluorescence spectrum (3D-EEM) and fourier transform infrared spectroscopy (FTIR) technologies were used to analyse the main components of sludge EPS during aerobic sludge granulation in this study. Results showed that the components of sludge EPS tended to be stable during aerobic sludge granulation.

Role and significance of extracellular polymeric substances on the property of aerobic granule.

Because of the important role of extracellular polymeric substances (EPS) in microbial aggregates, the relationship of the EPS and physico-chemical properties of aerobic granule was studied in two sequencing airlift bioreactors (SABR) using two kinds of substrates, acetate+glucose and 4-chloroaniline (4-ClA). Higher amounts of the exopolymeric protein (PN) and lower polysaccharides (PS) and DNA level were extracted from aerobic granules in the SABRs, and the variations in the PN and PN/PS of aerobic granules were higher (770% and 360%) in the SABR using 4-ClA as substrate than that in the other reactor. At the same time, suitable operating parameters (surface gas velocity at about 2.