Anoxic groundwater colloid properties were measured using a minimally perturbing procedure for sampling, processing, and analysis. Analytical methods included atomic force microscopy (AFM), flow field flow fractionation (FlFFF), and transmission and scanning electron microscopy (TEM and SEM). Shallow groundwater samples showed abundant iron rich nanoparticles (NP) with diameters of 10-30 nm as ...

The type of hazards and hazardous events in watersheds, depend on land uses around them. Atrazine is an organic pollutant widely applied as a pesticide it potential chemical hazard present water sources, which cause pollution negative effects aquatic life human health, due to its high solubility persistence soil. However, for developing countries, monitoring quantification atrazine can be compl...

A comparative study was undertaken to investigate the potential of silica-pectin ultrafiltration membrane on varied operation pressure (0.1-0.3 MPa). Cross-flow works were explored with tubular alumina substrates in single and multichannel configuration. The sol prepared from TEOS as silica precursor by sol-gel method, afterward pectin templated into induce carbon it. Thereafter, both coated vi...

Advanced oxidation processes (AOPs) are gaining traction as they offer mineralization potential rather than transferring contaminants between media. However, AOPs operated with limited energy and/or chemical inputs can exacerbate disinfection byproduct (DBP) formation, even as precursors such as dissolved organic carbon, UV254, and specific UV absorbance (SUVA) decrease. This study examined the...

Abstract River water was treated by continuous electrocoagulation (EC) for acetaminophen (AP), natural organic matter (NOM measured as UV254), and removal of elements. HRT at 40 min with 0.5 mg/L AP exhibited the best efficiency NOM (55.9%) (53.4%) removal. Except aluminium, other elements in river were removed completely. The EC sludge (floating settled) XRD spectrum showed peaks from reduced,...

Limbah cair merupakan sisa hasil buangan produksi atau aktivitas domestik yang berupa cairan. dapat air beserta bahan­­bahan lainnya tercampur (tersuspensi) maupun larut didalam air. Tujuan dari penelitian ini adalah untuk memberikan informasi tentang perbandingan efektivitas resin immobilized foto katalis TiO2 dan ZnO dalam proses degradasi fotokatalitik senyawa toksik terdegradasi (%). Kabupa...

Combined adsorption and oxidation using biochar to activate persulfate has been recently applied remove contaminants, yet most of the experiments are carried out artificial synthetic water instead real waters. Here we tested removal humic substances which is abundant affecting quality in natural waters, by combined with corn stalk biochar. Results showed that, compared prepared at 400 °C, 600 °...

Surface water pollution has increased, owing to industrial development and population growth. Consequently, it is important find alternative drinking treatment strategies, which cater for changes in the quality of raw water. This study compared efficiency different coagulants treating that feeds a plant (WTP). Using jar testing equipment number physicochemical parameters, an investigation was c...

River bank filtratio filtration (RBF) is one of the novel water abstraction alternatives to tackle poor water quality problem in Malaysia. This study was conducted to investigate the potential use of zeolite and activated carbon as filter media in the laboratory RBF system. Characteristics of the materials were first determined using the surface analyzer and X-ray fluorescence method. Filter co...