This study evaluated the co-remediation performance of an active–passive process comprised passive permeable reactive barrier acid mine drainage (AMD) pre-treatment and active anaerobic digestion treatment AMD with effluent as a carbon source. The bioreactor was operated for 24 consecutive days peak chemical oxygen demand (COD) sulphate loading rates 6.6 kg COD/m3/day 0.89 SO42−/m3/day, respect...

Due to the fast material reaction in zinc hydrometallurgy, traditional national standard photometric method cannot capture characteristic information of target substances real time. Herein, a nitrogen protection device is built based on ultraviolet spectrophotometry, supplemented by programmable logic controller (PLC), form an automatic control system for direct detection (SO42−, Pb2+ and S2−) ...

The redox balance of inorganic sulfur in heavily polluted rivers might be disrupted, making reduction a major metabolic pathway sulfate-reducing bacteria (SRB), leading to massive accumulation S2− and blackening the water bodies. A mixed culture microbial consortium (MCMC) Citrobacter sp.sp1, Ochrobactrum sp.sp2, Stenotrophomonas sp.sp3 was used activate native sulfate-oxidizing (SOB) augment o...

This study focusses on the evaluation of Euphrates River in Al-Anbar Governorate, through monthly collection water samples for a full year from twelve stations extending Al-Qaiem to Ameria. Because is source residents surrounding areas, therefore, continuous during close periods necessary. Accordingly, 144 were analyzed and their chemical physical properties determined. The results showed that ...

This study aims to analyze the chemical composition of Lioua’s groundwater in order determine geological processes influencing and origin its elements. Therefore, chemometrics techniques, such as multivariate statistical analysis (MSA) time series methods (TSM) are used. Indeed, MSA includes a component (PCA) cluster (CA), while autocorrelation (AA), supplemented by simple spectral density (SDA...