title: Utilization of concentrate of membrane filtration of bleach plant effluent in brick production.
abstract: Utilization potential of membrane filtration retentate (concentrate) of bleach plant effluent from paper industry, in bricks production, was investigated in the present study. Bricks were prepared by using retentate of membrane filtration in place of water. The physical properties measured for bricks were dimensions, density, moisture content, compressive strength, water absorption and porosity. Chemical analysis of the bricks was performed for water leachability and acid leachability, using ASTM Standard methods D 3987-06 and D 5233-92 respectively. The leachate samples were analyzed for Al, Cu, Fe, Co, Cr, Pb, Ni and Zn using AAS (atomic absorption spectrophotometer). Adsorbable organic halides (AOX) of leachate were analyzed by using AOX analyzer model ECS 1200 using column method. It was observed that the physical and chemical properties of bricks especially fire clay bricks were not adversely affected by the use of wastewater. Therefore, the organic matter of the retentate of membrane filtration creates no problems for this application.
authors.affiliation: Department of Paper Technology, Indian Institute of Technology Roorkee, Star Paper Mill Road, Saharanpur Campus, Saharanpur 247001, India. Electronic address: shuklasudheer@rediffmail.com.
authors.forename: Sudheer Kumar
authors.initials: SK
authors.lastname: Shukla
authors.affiliation: Department of Paper Technology, Indian Institute of Technology Roorkee, Star Paper Mill Road, Saharanpur Campus, Saharanpur 247001, India.
authors.forename: Vivek
authors.initials: V
authors.lastname: Kumar
authors.affiliation: Advances in Materials and Process Research Institute, Bhopal 462026, India.
authors.forename: Manish
authors.initials: M
authors.lastname: Mudgal
authors.affiliation: Advances in Materials and Process Research Institute, Bhopal 462026, India.
authors.forename: R K
authors.initials: RK
authors.lastname: Morchhale
authors.affiliation: Department of Paper Technology, Indian Institute of Technology Roorkee, Star Paper Mill Road, Saharanpur Campus, Saharanpur 247001, India.
authors.forename: M C
authors.initials: MC
authors.lastname: Bansal
mesh_terms: D000327:Adsorption; D003252:Construction Materials; D005374:Filtration / Q000379:methods*; D007220:Industrial Waste; D008567:Membranes, Artificial; D012973:Sodium Hypochlorite; D013054:Spectrophotometry, Atomic; D014873:Water Pollutants / Q000302:isolation & purification*
chemical_list: D007220:Industrial Waste; D008567:Membranes, Artificial; D014873:Water Pollutants; D012973:Sodium Hypochlorite