International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
REMOVAL OF TOTAL SUSPENDED SOLIDS AND TURBIDITY BY ACTIFLO PROCESS USING MICRO-SAND Chaitra H1, Dr.H B Aravind2, Mr. Akul Senapati3 1M.tech(Environmental
engineering), Department of Civil Engineering, Bapuji Insitute of Engineering and Technolgy, Davangere 2 B.E(civ),M.E(Envi),Ph.D,Head of Civil Department, BIET Davangere 3 B.E(Chemical), Senior manager, EMD,JSW, Toranagallu, Bellary, Karnataka, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - Environmental issues have become serious social concerns of a global scale. Among these issues, the impact of water pollution is getting more serious. As the steel industry commits itself to sustainable development, the importance of identifying alternative methods for wastewater treatment becomes more apparent. The removal of pollutants from wastewater is an important and integral part of any industrial process. “ACTIFLO” process which is a new and developing technology. It is an alternative method for conventional clarifiers due its retention time, size,chemical consumption comparatively very less than clarifiers, nearly 20 times less than in size. Actiflo has wide range of applications: advanced treatment of secondary effluent, CSO and storm water treatment, drinking water etc; The Actiflo has many benefits like small process footprint, suited for restricted spaces and low system head loss, flexibility, short start-up time, minimum equipment maintain etc; This process has found very effective in removal of TSS and Turbidity.
a new technique involving the incorporation of micro-sand into flocs. 1.2 BENEFITS: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.
Key Words: Actiflo, wastewater, physico-chemical treatment, microsand, weighted flocculation, lamellar settling, compact treatment unit.
1.3 APPLICATIONS 1.
1.INTRODUCTION As a steel industry commits itself to sustainable development, the importance of identifying alternative methods for wastewater treatment become more apparent. The removal of pollutants from wastewater is an important and integral part of any industrial process. One of method adopted in order to recycle and reuse the water is “ACTIFLO” which is the developing technology in many industries.
2. 3. 4. 5.
1.1 ACTIFLO
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Actiflo is an enhanced physico-chemical suited for difficult water. It is found effectively in CSO treatment, drinking water and wastewater treatment. It can effectively remove colloidal suspended solids, organic materials and suspended particles. This process is developed by combining chemical precipitation and lamella settling with
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Impact Factor value: 5.181
Efficiency of treatment is high ie turbidity removal exceeding 99% Reduction in energy consumption Reduction in retention time Very small footprint Reduction of total organic carbon Quick startup within few minutes High rise rate up to 120m3/hr Usage of coagulant and flocculent is minimized Sludge can be easily thickened and dewatered Reduces civil cost Easy to access Minimum equipment maintenance Stability and flexibility Automized operation
The Actiflo process is ideally suited for the treatment of industrial process water, wastewater, storm water, surface and ground water. Drinking water for the removal of natural organic matters, pesticides etc; Reuse of water for tertiary treatment and polishing of effluent. It is used in the recovery and recycle of filter backwash waste to reduce water losses. It can be used in all municipal wastewater treatment applications. Widely applied for combined sewer overflow and storm water treatment. Direct treatment of rivers and lakes.
1.4 COMPARSION OF ACTIFLO WITH CONVENTIONAL CLARIFIER The Actiflo has many advantages compared to the conventional clarifier:
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