Chlorine oxidation followed by treatment with activated carbon was studied as a possible method for removing radioactive iodine from water. Chlorination time, chlorine dose, the presence of natural organic matter (NOM), the presence of bromide ion (Br⁻), and carbon particle size strongly affected iodine removal. Treatment with superfine powdered activated carbon (SPAC) after 10-min oxidation wi...

Ultraviolet (UV)/chlorine processes are emerging advanced oxidation (AOPs) for micropollutant abatement. When excessive chlorine (Cl/N mass ratio of >7.6) is applied to ammonia-containing water yield free residual the UV/free AOP, AOP becomes UV/breakpoint chlorination. This study investigated degradation by and radical yields from chlorination under various conditions using benzoic acid (BA) n...

Recently, various activist and environmental groups have called for a ban on the use of chlorine and chlorine-containing compounds (1,2). The questions at issue are 1) is it possible, and 2) is it wise? Of course, chlorine, as chloride ion, is an essential component of the body, where it occurs at high levels in plasma and interstitial fluid. There probably is no controversy concerning this asp...

ABSTRACT- Crop residue is applied to amend soil properties and increase crop yield. In this study, the effects of rapeseed residues and different rates of nitrogen on grain yield and yield components of sunflower and weed dry matter were investigated. The experiment was conducted at the Experimental Farm of College of Agriculture, Shiraz University, located at Badjgah, Shiraz, Iran in 2007-2008...

According to international and domestic standards, the concentration of free chlorine remaining in each node must be between certain values. In this way, health water is guaranteed.

abstract- crop residue is applied to amend soil properties and increase crop yield. in this study, the effects of rapeseed residues and different rates of nitrogen on grain yield and yield components of sunflower and weed dry matter were investigated. the experiment was conducted at the experimental farm of college of agriculture, shiraz university, located at badjgah, shiraz, iran in 2007-2008...

Free chlorine has been used extensively as a primary and secondary disinfectant for potable water. Where it is difficult to maintain a free chlorine residual or when disinfection by-products (DBPs) are of concern, monochloramine has been used to provide a stable disinfectant residual in distributions systems. Reactions of disinfectants, free chlorine or monochloramine, with natural organic matt...

Point-of-use (POU) water treatment with sodium hypochlorite (NaOCl) has been proven to reduce diarrheal disease in developing countries. However, program implementation is complicated by unclear free chlorine residual guidelines for POU water treatment and difficulties in determining appropriate dosage recommendations. The author presents evidence supporting proposed criteria for household wate...