Water
海水の淡水化
With the worldwide population growth and the resultant increase in demand for fresh water for municipalities, agriculture and industry, there is a corresponding increase in the challenges for the need to assure global water demand with innovative technologies. This is because, whereas demand for fresh water is rising, there is a corresponding decline in its availability, and not only climate change but also environmental contamination are further exacerbating the worldwide water crisis. The trend is therefore increasingly moving in the direction of recovering drinking water from salt water. GEA is supporting this development with powerful decanters which enable procedures for sea water desalination to be designed with economic as well as ecological efficiency.
The three most important processes in sea water desalination are:
- RO – Reverse Osmosis (membrane process)
- MED – Multi-effect distillation
- MSF – Multi-stage flash
Evaporators are used in the MED- and MSF-processes. These operate under vacuum in order to achieve the best performance rate. In all cases, the vacuum is created using multi-stage steam jet vacuum pumps. Together with the corresponding condensers, these vacuum pumps are an integral part of the evaporation plant and are therefore becoming an increasing focus of attention.
Reverse osmosis is one of the most common methods for the desalination of sea water. In order to remove the insoluble substances in sea water, a flotation or ultrafiltration unit is generally installed upstream of the processing installations. This results in sedimented sludge and back-flush water, which have to be disposed of as a result of organic contamination.
Volume-reduced sludge lower disposal and transportation costs
The use of GEA decanters enables transportation and disposal costs to be efficiently reduced, as these machines reliably separate the sludge into solids and reusable water. Thanks to their high dewatering capacity, they are able to concentrate the solids up to 25 percent dry matter; this results in a considerable reduction in volume and correspondingly lower disposal costs.
Maximum reliability thanks to robust design
In order to permanently avoid corrosion even in conditions of extremely high chloride ion content in sea water, we only use high-quality materials for designing our decanters. All components which come into contact with product are therefore generally made from duplex/super duplex steel, and feature maximum reliability.
- Decanter for concentrating sediment and filtration back-flush water
- Reduction in the consumption of water
- Volume-reduced solids with high dry matter content
- Lower transportation and disposal costs
- Robust design due to use of corrosion-resistant materials
製品および技術
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コントロールモジュール
T.VIS® コントロールモジュールは、シリーズ VARIVENT®、ECOVENT® & T-smart の GEA バルブを制御および監視するための最適なシステムです。
サニタリ仕様バルブ & コンポーネント
GEA のサニタリ仕様バルブは、マトリックスパイププロセスプラントの中核コンポーネントを構成します。柔軟性の基準を設定する先駆的なバルブの概念と、最新の制御および自動化機能により、当社のバルブでは製造業者の最大限の製品の安全性とプロセスの信頼性が得られます。全ての GEA サニタリ仕様バルブは、その用途に対して効率的で費用対効果が高くなるよう設計されており、持続可能な操業と大幅な節約につながります。
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。
真空システム
真空システムは、ジェットポンプ技術に基づいています。この技術は、本質的にジェットポンプとコンデンサの組み合わせで構成されます。
その他の用途
