Nutrient enrichment of lakes from anthropogenic activities is a significant and increasing issue globally, impairing the health, biodiversity service provisioning lakes, with impacts on cultural, recreational, economic aesthetic values. Internal nutrient loads lakebed sediment releases are primary cause lake eutrophication have necessitated geoengineering methods to mitigate speed up recovery e...

The study was carried out to identify and study the settling characteristics of the dairy activated sludge. The causes and the control measure for the sludge bulking were studied. The activated sludge was generated by running a batch reactor of capacity of 10 liters for a θC of 10 days. It was operated until steady state conditions were reached. pH, DO, MLSS and COD were taken as the parameters...

This paper provides new insights on the application of the ozonation process for the reduction of the activated sludge production in a sequencing batch reactor (SBR). The study was performed in two identical lab-scale SBRs plant, one for experimental activities (Exp SBR) and one used as control (Control SBR), both fed with domestic sewage. A fraction of the activated sludge collected from the E...

The performance of isolated designed consortia comprising Bacillus pumilus, Brevibacterium sp, and Pseudomonas aeruginosa for the treatment of sewage wastewater in terms of reduction in COD (chemical oxygen demand), BOD (biochemical oxygen demand) MLSS (mixed liquor suspended solids), and TSS (total suspended solids) was studied. Different parameters were optimized (inoculum size, agitation, an...

In this study, granulated sludge synthesized in a sequence batch reactor (SBR) and then granulated sludge was transferred to continuous feeding and intermittent discharge (CFID) bioreactor. Two independent variables (air flow rate and hydraulic retention time (HRT)) were considered to optimize the process. Subsequently, long term performance (150 days) of the bioreactor was assessed by monitori...

Although anaerobic membrane bioreactors (AnMBR) are widely used in high-strength wastewater treatment and resource recovery, operational performance fouling control remain critical issues. In this study, the of a high-biomass (18 ≤ MLSS (g/L) 35) submerged bioreactor (HBSAnMBR) was assessed at organic loading rates (OLR) 1.05–5 kg-COD/m3/d to treat abattoir (AWW). The correlation between kineti...

This study aimed to investigate the impact of parent companies and other multiple large shareholders (MLSs) on audit fees in Japanese firms, where stakeholder-oriented corporate governance is adopted. In such a firm, monitoring by many stakeholders can mitigate conflicts among shareholders. However, because key these firms tend resolve information asymmetry problems through insider communicatio...