The photocatalytic degradation of two phenolic compounds, p-coumaric acid and caffeic acid, was performed with a suspended mixture of TiO(2) and powdered activated carbon (PAC) (at pH=3.4 and 8). Adsorption, direct photolysis and photocatalytic degradation were studied under different pH and UV light sources (sunlight vs. 365nm UV lamps). The potential for reusing this catalyst mixture in seque...

This study investigated the mechanism by which activated carbon removes trichloramine, a byproduct of water treatment that has a strongly offensive chlorinous odor. A stoichiometrical mass balance for ¹⁵N before and after activated carbon treatment of laboratory-prepared ¹⁵N-labeled trichloramine solutions clearly revealed that the mechanism of trichloramine removal with activated carbon was no...

Abstract This paper studied the adsorption of chemical oxygen demand (COD), oil and turbidity produced water (PW) which accompanies production reconnaissance after treating utilizing powdered activated carbon (PAC), clinoptilolite natural zeolite (CNZ) synthetic type X (XSZ). Moreover, deals with comparison pollutant removal over different adsorbents. Adsorption was executed in a batch system. ...

Abstract The water reservoirs are getting polluted due to increasing amounts of micropollutants such as pharmaceuticals, organic polymers and suspended solids. Powdered activated carbon (PAC) has been proved be a promising solution for the purification without having harmful impacts on environment. Parameters PAC dosing, wastewater hardness, effect coagulant flocculant were evaluated in batch s...

In this study, hybrid ultrafiltration which involves adsorption onto activated carbon and/or coagulation was tested for the removal of ibuprofen, caffeine and diclofenac from municipal wastewater treatment plant effluent (c0 = 2–3 µg/L). Ultrafiltration in combination with powdered dose 5 mg/L separately or coagulants (FeCl3, 4 mg Fe (III)/L and, natural coagulant isolated bean seeds, 33 µL/L)....

Dissolved organic nitrogen (DON) derived from wastewater effluent can participate in reactions that lead to formation of nitrogenous chlorination by-products, membrane fouling, eutrophication, and nitrification issues, so management of DON is important for both wastewater reuse applications and nutrient-sensitive watersheds that receive discharges from treated wastewater. This study documents D...

We collected urban soil samples impacted by polycyclic aromatic hydrocarbons (PAHs) from a sorbent-based remediation field trial to address concerns about unwanted side-effects of 2% powdered (PAC) or granular (GAC) activated carbon amendment on soil microbiology and pollutant biodegradation. After three years, total microbial cell counts and respiration rates were highest in the GAC amended so...

This study focused on evaluating the efficiency of powdered activated carbon (PAC) adsorption process and tackling chlorobenzenes and chlorophenols spill in drinking water source. The adsorption kinetics and PAC’s capacities for five chlorobenzenes and three chlorophenols at drinking water contamination levels were studied in order to determine the influence of different functional groups on th...

The use of powdered activated carbon for fouling control in the membrane processes is limited by some secondary problems associated with its use, like cake formation, long backwash times and blackening of pipes. Granular activated carbon (GAC) was used as an alternative of powdered activated carbon due to its large particle size which was kept from being entering into the membrane system. The s...