At Gemidan's pre-treatment plants, organic waste is turned into biopulp for degassing at biogas plants. The technology ensures sustainability and optimal energy utilization of the waste, and AVK knife gate valves control the flow.
Waste is an important resource
Waste is not just waste. If handled properly it can be an important resource. At Gemidan, they are specialists in processing technologies for treating and recycling of food waste. They have developed the Ecogi technology for pre-treatment of organic waste such as source-separated household waste and discarded packed food from business customers into a pure biopulp that can be used for biogas production.
Gemidan operates several Ecogi plants. The Ecogi Egedal plant, which is one of the most recently established Ecogi plants, has two Ecogi lines and capacity to treat 120,000 tonnes of organic waste annually.
Turning food waste into energy
At the Ecogi plants, food waste is converted into biopulp with very high purity using environmentally friendly technologies. The plants can treat virtually all types of organic waste.
When the organic waste arrives at the plant, it is loaded to the feed hopper. It is then automatically transported to the pulper, where it is mixed with process water, and stirred so that all packaging is opened by friction without being dissolved along with the organic waste. The pulp is then sent to the separator, where additional process water is added. When the pulper is empty, the valve between the pulper and the separator closes, and the pulper can be filled with a new batch of organic waste. From the separator, the biopulp is pumped to a tank for storage before it is transported to a biogas plant. The reject that remains in the separator is washed in two steps. First with process water and then with clean water to achieve the highest possible organic utilization of the waste. The reject is then dewatered in the separator before being transported to a container for storage, and later on it is transported to a waste incineration plant or to recycling. The drained water is led back into the process tank.
All processes at the plant are automated, and the operator can monitor the plant and control the processes electronically.
AVK valves delivered to Gemidan Egedal
AVK knife gate valves with stainless steel body:
- 18 pcs. DN100 + 6 pcs. DN125 with pneumatic actuators
- 3 pcs. DN125 with electric linear actuators
- 2 pcs. DN250 with handwheel
AVK Desponia butterfly valves in stainless steel:
- 2 pcs. DN50 + 2 pcs. DN150
Gemidan Ecogi develops, supplies and operates processing technologies for treatment of organic waste. The Ecogi plants can turn virtually all types of organic waste into biopulp for further treatment at biogas plants.
Ecogi technology converts food waste into green energy and ensures optimal utilization of the organic resources.Read more about Gemidan Ecogi