Rheinische BioEster GmbH    
 
Description of the plant
While the bio diesel production organically highly loaded wastewater results e. g. during glycerine evaporation, fatty acid and methyl ester drying process (vapour condensate). Substantial waste water constituents are glycerine, methanol and free fatty acids.
Features of this wastewater concept are small area requirement, excellent biomass separation, low operating costs as well as gain of biogas production.
The wastewater flows into a buffer tank where variations of flow and pH are balanced out. The tank is sufficiently sized for emergencies. The organic substances are hydrolysed by special fermentative microorganisms to fatty acids after pH adjustment. A feed/treated effluent heat exchanger improves the energy balance of the treatment system. In the patented Biomar® AHP reactor the increased anaerobic biological degradation of the organic waste water constituents by biogas production, which is used in a steam boiler, takes place. In the aerobic downstream basin the methanogenic biocoenosis is inactivated. A programmable logic controller (PLC) and a process visualization system support complete automatic operation. The plant fulfills all environmental requirements with regard to water, air and noise pollution.  

Capacity	50 m³/d
CSB-load	4.000 kg/d
CSB-concentration	< 80.000 mg/l
CSB-reduction (anaerobic)	> 95 %
Space requirement	20 m x 15 m
Control system	SPS, process visualization
Methan reactor
- Volume	2 x 200 m³
- Material	stainless steel, isolated
Biogas removal	> 1.950 m³/d
Temperature outside	-35°C bis +40°C
Process temperature	ca. +35°C
Start up	2006

Mr Matthias Krüger
matthias.krueger(at)envirochemie.com
phone: +49 (0) 61 54 / 69 98 - 84