微量营养素污水处理技术专题教学讲座课件.pdf

wastewater treatment company background biologic product overview how biologic works benefits of biologic applications of biologic sr2 summary questions a canadian based company privately owned and operated since 1989 head office/manufacturing in barrie, ontario biologic product line distributed in 39 countries to develop and apply biotechnology in pursuit of an environmentally sustainable future for the global community. using natural biological systems protecting the environment providing solutions that benefit our clients economically making a positive economic/lifestyle impact in the global community scientific innovation stimulation of natural bioreactions no direct capital investment no requirement for new infrastructure immediate return on investment reduce facility operating costs defer capital expenditures reduce energy use reduce public complaints reduce environmental impact improve/accelerate the success of: government environmental programs/policies environmental/health & safety programs quality of life economic growth biologic sr2 contains . no masking agent no bacteria no enzymes no toxic chemicals safe for human health and the environment manufactured with food-grade vitamins, amino acids and minerals biodegradable non-toxic certified by: microbial activity is fundamental to life microbial activity takes place in air, water and soil microbial species have independent growth requirements and function in relationship with each other availability of micronutrients is often the rate limiting material for cell synthesis and growth micronutrient requirements differ from one species to another nitrogen phosphorus co2 enzyme bacteria cell solids acidify bacteria dissolved organics co2 acetic acid hydrolyzing bacteria o2 new sludge nitrogen phosphorus co2 ch4 enzyme bacteria cell solids acidify bacteria dissolved organics co2 acetic acid hydrolyzing bacteria new sludge biologic suppresses: sulfur reducing bacteria parasitic organisms total & fecal coliforms biologic promotes: the growth of the non-odour producing bacteria hydrolysisacidification aerobic anaerobic facultative liquid/solid organic matter ph 3.5 7.0ph 3.5 5.0 ph 7.0 ph 7.0 ph 7.0 co2 sludge new organic solids co2 ch4 h2s sludge co2 ch4 h2s sludge oxygen macro nutrients ph drops ph rises ph rises ph rises co2 hydrolysisacidification aerobic anaerobic facultative odour foam foam foam ph imbalances -slow rate limiting reaction -starved for micronutrients -high o2 consumption -limited o2 consumption -sludge production -sludge production odour odour odour odours are produced and fats are not broken down fatfat fat fat fat hydrolysis biologic sr2 hydrolysis odour without biologic sr2 slow-rate limiting reaction starved for micronutrients accelerates bacteria breaks down fats and grease eliminates odour fat acidification acidification ph imbalancesaccelerates bacteria decreases odour eliminates foam breaks down fat fat biologic sr2without biologic sr2 aerobic biologic sr2 benefits increases decomposition of organics reduces o2 consumption eliminates foam reduces sludge production eliminates odour increases plant capacity improves effluent quality anaerobic biologic sr2benefits accelerates bacteria activity eliminates odour increases ch4 production increases plant capacity facultative biologic sr2 benefits increases metabolism eliminates odour increases gas production reduces sludge production reduces ammonia production increases plant capacity pumping station grit removal primary clarifiersecondary clarifier aeration tank aerobic digester anaerobic digester dewatering holding tank pumping station grit removal primary clarifier aeration tank aerobic digester anaerobic digester dewatering holding tank floating sludge floating sludge floating sludge floating sludge floating sludge secondary clarifier biologic suppresses the formation of filamentous bacteria eliminates floating sludge pumping station grit removal primary clarifiersecondary clarifier aeration tank aerobic digester anaerobic digester dewatering holding tank grease grease grease grease grease grease grease grease biologic readily digests fats, oils, waxes, and other related constituents reduces maintenance costs breaks down fats and oils pumping station grit removal primary clarifiersecondary clarifier aeration tank aerobic digester anaerobic digester dewatering holding tank foam/scum foam/scum removes source of foam production biologic digests fats and grease source of foam/scum production improves workplace conditions pumping station grit removal primary clarifiersecondary clarifier aeration tank aerobic digester anaerobic digester dewatering holding tank odour odour odour odour odour odour odour odour odour biologic suppresses sulphate-reducing bacteria reduces/eliminates odour improves air quality pumping station grit removal primary clarifiersecondary clarifier aeration tank aerobic digester anaerobic digester dewatering holding tank settleability settleability improves supernatant quality biologic increases settleability of sludge by eliminating fats, grease and filamentous bacteria increased dissolved oxygen content after biologictreatment 200% increase 1234 without biologic treatment weeks *effluent dissolved oxygen content accelerated microbial growth testing conducted at the biotechnology research institute of the national research council of canada. aerobic system 81 606 0 100 200 300 400 500 600 700 controlsr2 microorganisms/ml anaerobic system 8 53 0 10 20 30 40 50 60 controlsr2 microorganisms/ml 1234 months *septic sludge lagoon, domestic waste system sludge volume & odour reduction sludge volume reduced 33% with biologic odour & sludge volume without biologic odours reduced 95% with biologic with biologic90-95% reduction 1234 without biologic weeks *canadian armed forces base human sewage waste treatment lagoon (no artificial aeration) sludge mass reduction sludge volume reduced 85% with biologic 1234 without biologic months *sludge volume in treatment lagoon - lagoon was in service during treatment period human sewage waste treatment lagoon (no artificial aeration) sludge volume reduction increased biogas production with biologic 60% increase 1234 without biologic treatment weeks *anaerobic digester increased solids digestion rate solids digestion rate with biologicaddition (50% increase) 1234 *national research council data solids digestion rate without biologic weeks increased digestion gas production testing conducted at the biotechnology research institute of the national research council of canada. increased flow capacity after biologic treatment 1234 before biologic treatment weeks *septic tank drainfield 100% 10% bod removal efficiency with biologic (30 - 40% increase) 1234 *anaerobic / aerobic plant months increased biological treatment efficiency waste treatment plant performance bod/tss/tkn & odour without biologic 1234 *rotating biological contactor tss removal increased from 45% to 95% odours eliminated weeks nutrient removal increased from 0% to 65% after biologictreatment 1234 before biologic treatment months *canadian armed forces base clean-up criteria improved effluent quality 0 5 10 15 20 25 30 1234567891011 concentration weeks h2s without biologic addition of biologic stopped addition of biologic *sultanate of oman, 2003 0 50 100 150 200 250 300 350 1234567891011 concentration (mg/l) weeks bodsscodnitrogen addition of biologic stopped addition of biologic without biologic nh3-n *sultanate of oman, 2003 reduced cost of operation increased efficiency increased capacity decreased labour decreased energy use reduced environmental impact odour reduction/elimination higher effluent water quality less solid waste produced lagoons & ponds lakes & rivers wwtps aquaculture biological filters holding tanks leachate systems pulp & paper sludge septic systems cess pools dewatering systems east lake, shah alam, malaysia project objectives: - reduce odours - improve water clarity - reduce sludge volume - eliminate surface scum - improve dissolved oxygen content 24 inches of sludge accumulation muddy water enters via underground drain 9 weeks after treatment bottom can be seen through 30 inches of water before application 3 weeks following application after application project objectives: reduce odour improve water clarity reduce sludge volume eliminate surface scum improve effluent quality canadian forces base, ontario, canada before application: visibility is only 6 inches deep after application: bottom of the lagoon visible after application: bottom of the lagoon as seen from boat. can see 5 feet deep. project objectives: reduce odour reduce sludge volume improve water clarity improve aesthetic quality of pond tanah merah country club, singapore day 43 after applicationbefore application project objectives: reduce odour improve aesthetic quality of the river reduce sludge volume i