Energy derived from oil, coal or nuclear power is getting day by day more difficult to access because of the rising prices, pollution of the environment, health risks and availability. With the increasing supports from the governments the renewable energies - Bio energy - become more attractive. With wind, sun power and biomass it is possible to produce cheap, environmental friendly energy which has endless resources and is available for even isolated areas. MENA Water offers you solutions for an independent energy supply with wind turbines, solar panels and biogas plants.

Bio Gas

Together with our experienced partner we design biogas plants from pre-treatment of organic material to heat and power supply. Biogas power plants are useful for farmers, slaughter houses, agro-industries, food industries and factories with high heat and power demand, starting at 100kW. The key components offered are digesters, agitators, safety devices, gas storage containers, biogas handling equipments, desulphurisation plants, flares, waste gas biofilters and generators.

One main target is to make money with the biogas plant. There are possibilities.

Income with electricity: Biogas plants produce electricity with the cogeneration set which consists of a gas engine and a generator. The engine runs with the biogas and drives the generator. One small part of this electricity is used for the demand of the plant itself, for agitators, pumps, blowers, etc. The rest of the electricity can be sold and comes into the public grid. Prices for electricity are rising and the source of mineral oil is limited.
For instance: With one ton of sewage sludge from a waste water treatment with a dry matter of 12% the biogas plant can produce 170 kWh el.

Income with heat: The gas engine also produces heat. One part of the heat is necessary for the digester. The rest can be used for green houses, or you can produce steam. Using a adsorption machine you also can cool by using the heat.
For instance: With one ton of sewage sludge from a waste water treatment with a dry matter of 12% the biogas plant can produce 180 kWh th.

Income with disposing waste: Companies pay money to get rid of organic waste, which can be put into biogas plants. Some of those wastes need a pre-treatment before they are put into a digester, for in-stance sorting, crushing.

Income with fertilizer production: The effluent of the biogas plant, the digestate, is better than mineral fertilizer. It contains nitrogen, phosphorus, potassium and many other nutrients for plants.

Composition of the digested substrates

Digested substrates have a lot of advantages compared to untreated ones, these are:

Nutrients: In the digestate most of the nutrients are mineralised, this means, the roots of the plants can take them immediately. A lot of mineral fertilizer can be substituted this way.

Dry substance: A part of the dry substance gets eaten by the bacteria. The digestate is easier to handle this way and it flows quicker from the plants to the ground.

Odours: Chemical compounds, which cause odours are also decomposed by the micro organisms. The digestate does not smell that strong anymore, which is a big advantage.

Hygiene: Seed from herbs do not grow anymore after the digestion in a biogas plant. Eggs of flies and parasites as well as a lot of pathogen bacteria and viruses do not survive in the digester of a biogas plant.

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