Soeren Meyer chose Vogelsang
He uses a liquid feeding system and a RotaCut for solid matter feeding
"I chose Vogelsang, because with the liquid feeding system and the RotaCut solid matter feeding works trouble-free and the entire biogas plant verifiably operates more efficiently."
Soeren Meyer, owner and operator, Meyer Biogas GmbH & Co. KG, Germany
The focus of our family farm is pig fattening in a closed system and bull fattening. In 2010, I learned about biogas as a supplementary and farm mainstay through my master's thesis. After that, I started planning a biogas plant for our farm. Our plant consists of two digesters operating in parallel and a final storage, which the plant began working in November 2011. In addition to maize silage and liquid manure, CCM and rye flour was added to the daily feed ration at the beginning. These fed into the digester using a walking floor and two screw conveyor systems.
Immediately after the last detailed work completed and the system functioned properly, I looked at optimization options, including on the input side. To reduce the substrate costs, I tried to replace maize silage and especially CCM and rye flour with green rye. Both the mixers and the solid matter feeding were suitable to a limited extent so that I could only use small amounts of green rye. The use of liquid manure was not possible without additional effort.
After detailed advice and visits from the Vogelsang experts on site, I decided to convert to a liquid feeding system. This system consisted of a large pusher floor, a solid matter feeder and a downstream RotaCut RCX cutter, which went into operation in May 2016. The feeding process now performs trouble-free, the entire biogas plant operates more efficiently and my working day is much less stressful. And this despite the fact that the proportion of difficult substrates has been significantly increased.
Nevertheless, floating layers are a thing of the past. Even the main pump operates smoothly and with less wear since the changeover. The RotaCut equipped with a foreign matter separator also showed me the high amount of stones and metal parts contained in the solid matter and have so far ended up in the digester. Thanks to the more homogeneous organic suspension, the power requirement of the mixers and service time has significantly decreased. In total, I save now approximately 200 kWh per day –12,000 euros per year in terms of energy costs. Considering all factors, I expect a return on investment within about four years.
Customer portrait: Meyer Biogas Gmbh & Co. KG, Germany
| The company | Meyer Biogas Gmbh & Co. KG |
|---|---|
| Person in the testimonial | Soeren Meyer |
| Year of founding | 2011 |
| Modification solid matter feeding | 2016 |
| Nominal size | 2,300,000 m³ of biogas annually |
| Input | Maize silage, grass silage, green rye, dung, liquid manure |
| Setup | 2 digesters each 2,000 m³, 1 final storage with 6,000 m³, 2 CHP plants on the plant, 1 satellite CHP plant |
| Technology from Vogelsang in use | Liquid feeding system and RotaCut macerator |
