Both residues from the fermentation of biomass and slurry from livestock farming are considered to be valuable fertilizers in modern agriculture. For spreading on agricultural land in a way that is not detrimental to the soil and in accordance with the strict legal requirements, the organic substances and associated excess nutrients must be processed appropriately. GEA provides the market with customer-friendly and demand-based processing concepts, which contribute to the sustainable reduction of environmental pollution.
Using decanters to produce high-quality fertilizers from fermentation residues
For the efficient processing of fermentation residues, our high-performance GEA decanters reliably separate solid particles, dewater them into a pourable dry consistency, and guarantee a high content of up to 30% dry substance in the solids. Compared with other technologies, there is no risk of blockage with centrifugal technology and the separation of solids is more efficient. Our customers benefit from lower transport and spreading costs, as the high separation efficiency of our decanters ensures a high proportion of organic content in the solids that are spread. Moreover, for lower fresh water consumption, the clear centrate water can be fed back into the fermentation process.
Reducing phosphate and nitrogen content with decanters
GEA decanters are also designed for processing raw slurry and offer users a range of advantages. They can be used to reduce phosphate and nitrogen content efficiently, for example from liquid pig slurry, by separating up to 75% of the phosphate compounds and up to 35% of the nitrogen compounds with the solids. The pourable solids can be composted and used as high-grade fertilizers. The liquid phase is transported to a silo for storage or spread on agricultural land.
Energy-efficient evaporation technology for economical concentration of raw slurry
Concentrating slurry in an evaporation plant has also been proven as effective to counter the surplus of slurry, particularly in cattle-strong rearing farms. In this process, the slurry is concentrated up to 30% dry substance in an evaporation plant then completely dried in a dryer. Both the evaporation plant and the dryer can be operated here entirely with the aid of waste heat, which is often available.
Advantages:
- Sustainable solutions for processing raw slurry and fermentation residues
- Decanter or evaporation plant – appropriate process technology for every customer
- Production of high-grade fertilizers for environmentally friendly spreading that is compliant with the strictest legal requirements
- Reduction of transport and spreading costs
- High content of dry substance in the solids that are spread
- Lower energy costs for the evaporation plant and dryer due to the use of waste heat
GEA further supplies equipment like jet and vacuum pumps for conveying liquids such as biological sludge or manure and solids such as sand and gravel.
製品および技術
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MVR/TVR 加熱蒸留プラント
熱蒸気再圧縮はスチームジェットを噴射して、プラントに流れる蒸気温度を上昇させます。これらの昇圧されたフローが濃縮されると、低温のプロセスフローの加熱または蒸発に使われます。それによって蒸気消費量が最小限に抑えられます。
カールスルーエ R&D センターの蒸留試験施設
最先端のパイロットプラントとテストベンチを備えた当社の R & D センターは、蒸留技術分野の試験用機器が十分に用意されています。
ジェットポンプ
エジェクタとも呼ばれるジェットポンプは、ガス・液体媒体が駆動力としての役割を果たすガス、蒸気、液体・固形物の搬送、圧縮または混合、および真空の生成のための装置です。
デカンタ遠心分離機
懸濁液の固体成分を高効率で処理するにあたり、デカンタの時代が到来しました。この機器は、高い浄化効率性と最大限の脱水だけでなく、固体の除去と同時に液体を分離できるようにします。ここでの主な要件は高いボウル速度、巻軸の強力な駆動装置および実現される固体脱水に自動的に順応する巻軸速度です。
Downloads
関連のある動画
GEA environmental Decanter pro
Mobile Decanter Systems
Nueva planta móvil GEA de tratamiento de purines - Cooperativa Pirenaica
