The presence of dissolved organic matter (DOM) in tropical peat water affects the appearance trihalomethanes (THMs) and haloacetic acids (HAAs) natural sources. However, information about THM HAA is still limited. This study was conducted to determine THMs HAAs taken from a canal river Riau Peatland, Indonesia, influenced by seasons tides. DOM measured carbon (DOC) UV254 absorbance. determined ...

In this study, sequential coagulation and electro-oxidation (EO) processes were applied to landfill leachate, which is highly contaminated complex wastewater. Since the pollutant content of leachate was too high, process (poly aluminum chloride (PAC) as a coagulant) pre-treatment reduce cost EO process. The Box-Behnken design response surface methodology used. color number (CN) removal efficien...

Konvansiyonel arıtma prosesleri ile yeterli oranda giderilemeyen sucul ortamdaki doğal organik maddenin (DOM) dezenfeksiyon/oksidasyon amacıyla kullanılan klorla reaksiyona girmesi sonucunda oksidasyon yan ürünleri (OYÜ) oluşmaktadır. DOM ozon arasındaki reaksiyonlar alifatikliği ve aromatikliği gibi fiziko kimyasal özelliklerine bağlıdır. Bu çalışmada yüzey su kaynaklarındaki maddeleri temsil ...

Based on the fact that recycling of combined filter backwash water (CFBW) directly to drinking water treatment plants (WTP) is considered to be a feasible method to enhance pollutant removal efficiency, we were motivated to evaluate the genotoxicity of water samples from two pilot-scale drinking water treatment systems, one with recycling of combined backwash water, the other one with a convent...

Organic matter present in natural water sources is a concern in drinking water treatment because of its role in reacting to form disinfection by-products, contributing to membrane filtration fouling, and binding and transporting contaminants (Leenheer & Croué 2003). When the effects of organic matter on treatment processes are considered, a major source of uncertainty is the variable compositio...

The reclamation and reuse of wastewater is one of the possible ways to relieve the serious fresh water resource crisis in China. Efficient reclamation treatment technologies ensure the safe reuse of reclaimed water. In order to screen out and evaluate technologies appropriate for reclamation treatment, a great deal of efforts have been brought to bear. In the present study, a toxicity-based met...

Understanding the complexity of dissolved organic matter (DOM) in stormwater has drawn a lot of interest, since DOM from stormwater causes not only environmental impacts, but also worsens downstream aquatic quality associated with water supply and treatability. This study introduced and employed high-performance size exclusion chromatography (HPSEC) coupled with an ultraviolet-visible (UV-vis) ...

PO4(3-) and SiO3(2-) are often used as modifier to improve stability and aggregating ability of the iron-base coagulants, however, there are few reports about their detailed comparison between the coagulation performance and mechanisms. In this study, three coagulants--polyferric phosphoric sulfate (PFPS), polysilicon ferric sulfate (PFSS), and polyferric sulfate (PFS) were synthesized; their s...

All reagents were purchased from Sigma-Aldrich or Life Technologies and were used as received. Where described below pet. refers to petroleum ether (40–60 °C). All reactions were monitored by thin-layer chromatography (TLC) on pre-coated SIL G/UV254 silica gel plates (254 m) purchased from VWR. Flash column chromatography was carried out with Kiesegel 60 M, 0.04/0.063 mm (200–400 mesh) silica ...