Treatment of tannery wastewater for reuse by physico
Treatment of wastewater from a tannery in Greater Ho Chi Minh City (Vietnam) was investigated on a pilot scale. After pre-treatment by the tannery that included batch-coagulation and sedimentation, the wastewater was treated by dissolved air flotation, a membrane bioreactor (MBR) and granular activated carbon (GAC) for polishing the MBR effluent.
70 Sharma and dWivedi StudieS on treatment of WaSteWater from tanner 71 fig. 5 Sulphate values during the treatment fig 6 Chloride during the treatment Sulphate mg/l Chloride mg/l fig. 7 Chromium during the treatment to it. The pH of the wastewater was adjusted to 5, 6, 7 and 8 by adding acid or base as required. Sulfuric
Case Studies on Biological Treatment of Tannery Effluents
an ASP-based plant, receives 1.9 MLD of tannery waste-water18 against a design flow of 2.15 MLD. As in previous cases, preliminary treatment of this wastewater for the removal of grit and Cr is performed in the tannery itself. A process flow sheet for this CETP is shown in Figure 2. Table 1 presents a comparative overview of the two CETPs.
Introduction to treatment of tannery effluents 9 To avoid possible confusion arising due to differences in water consumption, it is practical to indicate the amount of pollutants generated per tonne of raw-hide input.
Treatment of Tannery - Energypedia
in which an individual tannery applies all the below-described wastewater treatment steps on site. In other situations an individual tannery may apply (on site) only pre-treatment or a part pre-treatment or no treatment at all, sending the effluent to a centralised effluent treatment plant. Nevertheless, a treatment is necessary
Tannery saline wastewater obtained from a Common Effluent Treatment Plant (CETP) near Chennai (southern India) was treated with pure and mixed consortia of four salt tolerant bacterial strains viz., Pseudomonas aeruginosa, Bacillus flexus, Exiguobacterium homiense and Staphylococcus aureus which are isolated from marine and tannery saline
Biological Treatment of Tannery Wastewater - A Review
Biological Treatment of Tannery Wastewater - A Review Article (PDF Available) in Journal of Environmental Science and Technology 4(1) · January 2011 with 10,324 Reads How we measure 'reads'
S. Haydar, J.A. Aziz, Characterization and treatability studies of tannery wastewater using chemically enhanced primary treatment (CEPT)—a case study of Saddiq Leather Works, J. Hazard. Mater., 163 (2008) 1076–1083.
Phosphorous Standard for Wastewater Treatment Works
Urban Wastewater Treatment Directive and the Phosphorous Regulations. 2.0 Legislation The urban waste water treatment directive (UWWTD) is concerned with the collection, treatment and disposal of urban waste waters and the treatment and discharge of industrial waste waters. The principal elements of the Directive are summarised as requiring:
effluent quality from tannery industries is still a little studied topic. This study sought to assess the quality of the effluent at the Wastewater Treatment Plant (WWTP) at Jambo Tannery (U) limited. Jambo tannery with a daily capacity of 6.6 tonnes of hides and skins in two loadings, utilize 20 m3 of water, estimated to be 3.03 m3 per tonne.
How Water and Wastewater Treatment Plant Upgrades
Improved treated water quality. The Kafue Bulk Water Supply Project will enable the plant to supply an additional 50 million litres of water per day. Other examples of water and wastewater treatment plant upgrades increasing capacity include projects in Nhlangano, Swaziland and in Letseng, Lesotho.
NCH Europe is passionate about environmental welfare, renewable energy and wastewater treatment. As water regulations become more rigid, businesses are beginning to adapt their wastewater strategy to create a greener future for future generations. NCH’s high quality wastewater products are especially formulated to reduce drain maintenance and help businesses achieve their environmental goals.
