Characterization and Treatment of wastewater of Paper& Pulp industry (original) (raw)
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The pulp and paper industry is one of the water intensive industries around the world which produce a large quantity of wastewater. The effluents of these industries contains heavy metals, color, pH, high amount of BOD, COD, TSS, TDS etc. and are critical to the environment if its discharged without proper treatment. Different treatment method has been discussed in many research papers to treat the paper industry waste water but the best result is given by the adsorption method of treatment as it is more versatile, effective, simple and economical in comparison to the other methods. IndexTerms pulp and paper effluents, heavy metals, adsorption, phytoremediation, efficiency
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Pulp and paper mills generate varieties of pollutants depending upon type of the pulping process being used. This paper presents the characteristics of wastewater from South India Paper Mill, Karnataka, India which is using recycled waste paper as a raw material. The raw wastewater consists of 80-90 mg L −1 suspended solid and 1,010-1,015 mg L −1 dissolved solid. However, pH varied from 5.5-6.8. The biochemical oxygen demand and chemical oxygen demand ranged from 200-210 and 1,120-1,160 mg L −1 , respectively. Aerobic treatment of raw effluent attribute to significant reduction in suspended solid (range between 25 to 30 mg L −1) and total dissolved solid (range between 360 to 390 mg L −1). However, pH, temperature, and
Chemical treatments of Effluents from Agro-Based Paper Mill in Uttar Pradesh State of India
International Journal For Research In Applied Science & Engineering Technology, 2020
Discharge of large amount of wastewater as effluent from pulp and paper industries in the surrounding streams result in serious health and environmental problems. These large quantities of effluents need to be treated after characterization prior to their disposal. Physicochemical characteristics of effluents from an agro-based paper mills located in Uttar Pradesh state of India were analyzed in terms of pH, colour, TS, TDS, TSS, turbidity, BOD, COD and AOX. The results found markedly higher values of all physicochemical parameters of effluents from various processing units of the paper mill than the permissible limit thus necessitating appropriate treatment prior to their discharge in the environment. In the present paper several types of coagulant viz. Ferric chloride, lime, alum and Ferric chloride with poly acryl amide(PAM) have been examined for their effectiveness of reducing chemical load of the effluent.
BioResources, 2016
The pulp and paper (P&P) industry worldwide has achieved substantial progress in treating both process water and wastewater, thus limiting the discharge of pollutants to receiving waters. This review covers a variety of wastewater treatment methods, which provide P&P companies with costeffective ways to limit the release of biological or chemical oxygen demand, toxicity, solids, color, and other indicators of pollutant load. Conventional wastewater treatment systems, often comprising primary clarification followed by activated sludge processes, have been widely implemented in the P&P industry. Higher levels of pollutant removal can be achieved by supplementary treatments, which can include anaerobic biological stages, advanced oxidation processes, bioreactors, and membrane filtration technologies. Improvements in the performance of wastewater treatment operations often can be achieved by effective measurement technologies and by strategic addition of agents including coagulants, flocculants, filter aids, and optimized fungal or bacterial cultures. In addition, P&P mills can implement upstream process changes, including dissolved-air-flotation (DAF) systems, filtration save-alls, and kidney-like operations to purify process waters, thus reducing the load of pollutants and the volume of effluent being discharged to end-of-pipe wastewater treatment plants.
International Journal of Engineering Research and Technology (IJERT), 2020
https://www.ijert.org/assessment-of-physicochemical-characteristics-of-effluents-from-paper-mill-in-the-state-of-uttar-pradesh-india https://www.ijert.org/research/assessment-of-physicochemical-characteristics-of-effluents-from-paper-mill-in-the-state-of-uttar-pradesh-india-IJERTV9IS070190.pdf Discharge of large amount of wastewater as effluent from pulp and paper industries in the surrounding streams result in serious health and environmental problems. These large quantities of effluents need to be characterized for evolving proper treatment strategy prior to their disposal. Physicochemical characteristics of effluents from an agro-based paper mills located in Uttar Pradesh state of India were analyzed in terms of pH, colour, TS, TDS, TSS, turbidity, BOD, COD, and AOX. The effluent samples collected from different processing unis of the paper mill varied considerably across the discharge streams. The mean values pH, colour, TS, TDS, TSS, turbidity, BOD, COD, and AOX ranged from 1.82±0.03 to 9.84±0.06, 481.44±0.58 to 3936.16±5.76 PCU, 1718.49±0.65 to 4252.29±4.46 ppm, 1518.27±2.65 to 3032.14±3.32 ppm, 200.22±2.01 to 1220.15±3.15 ppm, 113.23±1.46 to 481.22±2.61 NTU, 355.65±3.50 to 1342.22±3.50 ppm, 881.52±3.19 to 2710.12±4.52 ppm, and 15.75±0.51 to 38.35±0.21 ppm respectively. The results demonstrated markedly higher values of all physicochemical parameters of effluents from various processing units of the paper mill than the permissible limit thus necessitating appropriate treatment prior to their discharge in the environment.
Physico-Chemical Analysis of Hazardous Effluents from Different Paper Industries
Annual paper production is measure of the development of a country. Paper is made from cellulose based raw material, after their chemical and mechanical treatments. There treatment discharge waste water into the environment which is carried along the water channels like drains. The water form these drains is used by formers for irrigation purposes. If this drained water contains harmful effluents it can badly affect crops. To over come or minimize this damage present study was carried out. Various parameters were checked using standard procedure recommended by American Public Health Association and the results were compared with National Environmental Quality standards (NEQs) of Pakistan. The value of average temperature, pH, TDS and chloride was in harmony with NEQs, whereas the values of the other parameters like TSS, BOD5, COD, Copper and iron were above the NEQs limits for effluents. The violation of the parameters from NEQs suggest that it is time to take steps to check the discharge of unreacted or incomplete treatment effluents into these drains and distribution, so to ensure healthy environment for future generations.