Treatment of natural rubber industry wastewater through a combination of physicochemical and ozonation processes
Journal Title: Journal of Advances in Environmental Health Research (JAEHR) - Year 2015, Vol 3, Issue 4
Abstract
In any type of rubber product manufacturing (including tires), the primary concerns are environmental. The aim of the present study was to survey a treatment combination of ozonation and physicochemical processes in the rubber industry. Wastewater samples were collected from the discharge unit of the rubber processing sewage system in Kerman Barez Tire Factory, Kerman, Iran. The wastewater samples used for chemical oxygen demand (COD), biochemical oxygen demand (BOD), total suspended solids (TSS), and oil and grease determinations were collected directly into bottles. After collection, samples were transferred to the laboratory for examination. The 2 methods of physicochemical process and ozonation process were used to treat wastewater. The study results suggest that the use of a chemical coagulation process with ferric chloride (FeCl3.7H2O) in the first stage of this study reduced COD by 37% of the original amount (0.56 g/l). The optimum dosage and pH range were 0.775 g/l and 6.5, respectively. When using Al2(SO4)3, the COD reduction rate was 42%, and the optimum dosage and pH range were, respectively, 0.45 g/l and 6.5-7. After the ozonation process, COD was reduced by 70.75% and 90.6%. In accordance with these results and with respect to the high contamination load of this industry’s wastewater and its many environmental hazards, the complete treatment of this industry’s wastewater is crucial. One scientific and practical approach to wastewater treatment is the use of a combination of processes.
Authors and Affiliations
Mohamadreza Massoudinejad, Mohsen Mehdipour-Rabori, Mohammad Hadi Dehghani
Removal of p-chlorophenol from aqueous solution using ultraviolet/zerovalent-iron (UV/ZVI)/persulfate process
In this study, degradation of p-chlorophenol (p-CP) was evaluated using persulfate (PS) activated zerovalent iron (ZVI) based ultraviolet (UV) in a bench scale photoreactor. The effect of operational parameters such as s...
Improvement of petroleum hydrocarbon remediation using the oat plant in the soil treated by poultry manure
This greenhouse experiment aimed to investigate the effects of poultry manure (PM) on the growth of oat plant (Avena sativa) and removal of total petroleum hydrocarbons (TPHs) from soil. The treatments consisted of three...
Investigation of potato peel-based bio-sorbent efficiency in reactive dye removal: Artificial neural network modeling and genetic algorithms optimization
Over the last few years, a number of investigations have been conducted to explore the low cost sorbents for the decontamination of toxic materials. Undoubtedly, agricultural waste mass is presently one of the most chall...
Health risk assessment of the concentration of trace elements in cosmetic products in Sanandaj, Iran
This study was conducted to determine the concentrations of Ag, Cd, Cr, Cu, Fe, Ni, Pb, and Zn in the commonly used cosmetic products such as eyeshadows, eyeliners, and skin whitening creams in markets of Sanandaj city,...
Using geographic information system (GIS) and remote sensing (RS) in zoning nitrate concentration in the roundwater of Birjand, Iran
Previous studies have shown that the presence of nitrate in drinking water can cause several diseases especially in the infants, such as cancer and blue baby. The Environmental Protection Agency (EPA) has since adopted t...