„ „ more than 1.5 times our electrical requirement“ own The plant’s efficiency allows us to produce dating all the back to way the 1970s“ in MannheimThere cooperation nearby has been seamless MWM with 170,000 people is biologically treated and cleaned in the Weinheim Weinheim the in cleaned and treated biologically is people 170,000 treatment plant Bergstraße e.V.treatment plant Bergstraße Manuel Ritter, manager of the wastewater delbachtal“ Waste Water Utility. Currently the wastewater from some some from wastewater the Currently Utility. Water Waste delbachtal“ er, already earning his master craftsman‘s certificate at 22. 22. at certificate er, his craftsman‘s master earning already also can we but for electricity, complete requirement annual plant our only not produce we plant, optimized continuously and efficient „With our particularly plants. power cogeneration MWM two gas with generation have practically become standard equipment within equipment within standard become practically have generation Today, demand. for power plants heat and power combined electricity sewage plants used to take up the largest share of municipalities‘ municipalities‘ of share largest the up totake used plants sewage and Baden-Wuerttemberg communities of Weinheim, Viernheim, of Weinheim, communities Viernheim, and Baden-Wuerttemberg manag plant sewage youngest Germany‘s is Ritter Manuel 24, of age sewage from electricity produces 1993, in overhauled completely and manager of the wastewater treatment plant, proudly explains. At the At the explains. proudly plant, treatment ofmanager the wastewater Birkenau, Hemsbach, Hirschberg, Laudenbach, along with the „Grun the with along Laudenbach, Hirschberg, Hemsbach, Birkenau, the Hessian encompasses District Utility Wastewater Bergstrasse in 1977 commissioned plant, treatment the wastewater Bergstrasse, is no excep District Utility Wastewater in the Bergstrasse Plant upon rainfall, the plant processes between 20,000 and 130,000 m and 20,000 between processes plant the rainfall, upon Wastewater treatment is an energy-intensive business – in the past, – in the past, business is treatment an energy-intensive Wastewater feed up to 1,800 MWh back into the public grid,” as Manuel Ritter, Ritter, Manuel as grid,” public the into back MWh to1,800 up feed treatment capacity of 230,000 to 240,000 inhabitants. Depending Depending inhabitants. to 240,000 of 230,000 capacity treatment tion in this regard. Located just outside the city of Weinheim an der der an Weinheim of city the outside just Located regard. this in tion wastewater treatment plant. The system is designed for a wastewater awastewater for designed is system The plant. treatment wastewater wastewater treatment plants. The Weinheim Wastewater Treatment Weinheim The Wastewater plants. treatment wastewater

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„Thus far, we have been operating two cogeneration systems, each each systems, cogeneration two operating been far, have „Thus we The third CHP plant currently under construction is a redundancy unit, unit, aredundancy is construction under currently plant CHP third The Bergstrasse the in systems cogeneration the of gensets gas The 2,400,000 m our own electricity requirement and simultaneously use the heat gen heat the use simultaneously and requirement electricity own our operation for ready to be expected is and construction under currently Athird MWM. from genset a600 kWel and a400 kWel with equipped erated for the heating of our buildings and of fermentation towers that that towers fermentation of and buildings our of heating the for erated engine manufacturer. system is available as a „standby CHP plant.“ Since the commission the Since plant.“ CHP a„standby as available is system at the end of 2014,” explains Manuel Ritter. „It will enable us to cover tocover us enable will „It Ritter. Manuel explains 2014,” of end the at as the failure of a CHP plant would result in unnecessary energy costs. costs. energy unnecessary in result would plant aCHP of failure the as as a byproduct of water treatment. The fermentation tanks, a typical a typical tanks, fermentation of The watertreatment. as a byproduct achieve an extremely high gas yield during the fermentation process – process the fermentation during high gas yield an extremely achieve CHP plant with an additional 600 kW from the Mannheim company is is company Mannheim the from 600 kW additional an with plant CHP require a temperature of 37°C for the fermentation processes.“ fermentation the for 37°C of atemperature require manager, illustrating the sewage plant‘s energy efficiency. plant‘s energy manager, the sewage illustrating ing of the sewage plant in 1977, there has been seamless cooperation cooperation seamless been has 1977, in there plant sewage the of ing With the third MWM TCG 2016V 12 series genset, a high-performance 2016V TCG a 12 high-performance the MWM genset, third With series Wastewater Utility District reach some 7,500 annual operating hours. hours. operating 7,500 annual some reach District Utility Wastewater between the wastewater utility district and the Mannheim-based gas gas and the Mannheim-based district utility the wastewater between visual characteristic of wastewater treatment plants, generate roughly roughly generate plants, treatment of wastewater characteristic visual wastewater per day, producing up to 7t of fermentation sludge daily daily sludge fermentation of to7t up producing day, per wastewater we increase the efficiency through filtering and drying,“ says the plant plant the says drying,“ and filtering through efficiency the increase we 3 of fermentation gas per year. „Our plant is designed to to designed is plant year. „Our per gas fermentation of - -

© Abwasserverband Bergstraße „

© Abwasserverband Bergstraße © Abwasserverband Bergstraße plants“ CHP three our for management online For the future, we are planning to implement Weinheim/Bergstrasse, Germany Weinheim/Bergstrasse, District Utility Water Waste Bergstrasse TreatmentWeinheim Wastewater Plant, Details Technical specifications for CHP plants Fermentation tanks Fermentation sludge Fermentation treatment plant running. plant treatment wastewater the keep supplies power emergency outage, apower of case In requirement. electricity own plant’s the of to162% up produce they plants, power cogeneration the with Together to 560,000 kWh/year. up yielding buildings, the of tops roof the on installed panels photovoltaic of m2 5,000 over has Plant Treatment Wastewater Weinheim the plants, CHP to the addition In efficiency Overall efficiency Thermal efficiency Electrical Electrical output Electrical Generator Engine type ofCommissioning the gensets ofCommissioning the plant sewage Heat output Power production Gas production Gas Wastewater volumes Wastewater Employees Country City Contact 384-8800 621 F +49 384-0 621 T +49 DE-68167 Mannheim 1 Carl-Benz-Straße GmbH Solutions Energy Caterpillar | | www.mwm.net [email protected] 3 fermentation tanks, 4,700 m tanks, 3 fermentation 7t approx. 12,000,000-18,500,000 m approx. 83.0% approx. 40.5% approx. 42.5% 1 CA4B24 400 MJB Marelli LA4; 400 M8B Technology Energy FKI 2 1 kW) (600 2014 of end kW), 2011 (600 kW), (400 2006 1977 kWh/year approx. 5,340,000 requirement own plant‘s the of 147% toapprox. equivalent 5,600,000 kWh/year, approx. approx. 2,400,000 m approx. 2,400,000 20,000-130,000 m 53 Germany Weinheim Ensinger,Hubert CEO x 400 kW, 2 kW, x 400 x x MWM TCG 2016 V12 C – 600 kWel V12 2016 C–600 TCG MWM kWel V12 2016 K–400 TBG MWM / / Bergstraße d (solid) x 600 kW 600 3 /day 3 / year 3 / year

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