Removal of DDT in drinking water using nanofiltration process

Removal of pesticides and inorganic pollutants by reverse osmosis

“…Physical adsorption is a completely reversible process, while the latter can be irreversible for strong chemical bonds or reversible for weak secondary chemical bonds such as hydrogen bonding and complexation. It is possible that both chemical (hydrogen bonding) and physical (hydrophobic interactions) adsorption occurs during the separation process [8]. Determination of inorganic compounds, salts and total organic carbon (TOC) was carried out in mixed permeate and concentrate.…”

“…The water matrix has a significant influence on the rejection of pesticides and the pressure normalized flux [7]. DDT is easily absorbed by humic acid and can be removed, when applied along with the nanofiltration process [8]. The results of the removal of pesticides from contaminated water by nanofiltration and reverse osmosis are reported and related work has been reviewed in recent papers.…”

Removal of perfluorooctane sulfonates from water by a hybrid coagulation–nanofiltration process

“…Typically, NF membrane has a higher rejection to water contaminants than microfiltration (MF) and ultrafiltration (UF) membranes and a higher water flux than RO membrane. Thus, the applications of NF towards the removal of trace amount of organic matters and inorganic contaminants have been extensively studied [18][19][20]. As reported in our previous studies, PFOS can be effectively removed by NF270 membrane [21] and novel poly (m-phenylene isophthalamide) hollow fiber nanofiltration membrane [22].…”

Membrane Processing Technology in the Food Industry: Food Processing, Wastewater Treatment, and Effects on Physical, Microbiological, Organoleptic, and Nutritional Properties of Foods

“…Rejected quantities were reduced by limiting the initial DDT concentrations. Provided the maintenance of a steady recovery rate, increased flux may lead to lower quantities of rejected substance(Pang et al, 2010). Silage juice consists of various compounds and the retention of useful substances, such as lactic acid and several proteins, is very important.…”