Express Drainage Solutions

A Solution for Sanitation, Wastewater Treatment & Renewable Energy

Njengi House

2nd Floor Suite 6, Tom Mboya St.

8:00AM - 5:00PM

Monday to Friday



To ensure a sufficient treatment process while at the same time increasing the biogas,
Conditions such as air tightness, suitable temperature, necessary nutrients, water contents, and maintaining suitable pH balance must be maintained.

Feeding the digester should be done regularly with the right material. If the plant is fixed to toilets, they should be under constant use to guarantee regular feeding to ensure continuous gas production.

The concentration of the anaerobic bacteria can be increased by adding our Enzyme and Bacteria into the plant. Cow dung has got methanogen bacteria which are of the same type as the ones contained in our enzyme and bacteria.

Slurry analysis should be done at least once a year and whenever the need arises especially when gas production has reduced.

The pH of the slurry should be tested regularly and whenever the need arises especially when gas production has reduced.

We check for leakages along the pipes and the accessories. Teflon tape must be used in pipe fittings to avoid leakage from pipe fittings.

We check and remove the accumulated water in the water traps. The water trap or water drain at the lowest part of the piping line should be checked regularly for its functionality. Water drain must be made at the lowest level of the fittings. Excess overflow of water in this device may increase the moisture content in the gas rendering it inflammable.

Biogas has a tendency to corrode GI pipe fittings. During piping, these components should be avoided but in case they are used, they should be replaced regularly in a span of two years.

This is the process of manual or mechanical removal of the settled decomposed waste at the bottom of the plant. During anaerobic decomposition, waste gases are produced and the remains settle down after some time. This continuous process accumulates some solids which affect the plant’s performance with time.
De-sludging therefore becomes necessary after 18 months depending on the type of waste digested. All the gas produced must first be released into the air or used up.

Biogas contains other gases such as Carbon dioxide and Sulphur dioxide as a result of decay. During combustion, these gases disintegrate producing other solid components such as Carbon and Sulphur oxides that are dissipated on the surfaces of the stoves, lamps, generators and all the equipment used.
This causes blockages when they have accumulated to a reasonable level. It is advisable to clean off all these particles for higher equipment efficiencies.

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P.O.BOX 8620-00200, Nairobi, Kenya

Njengi House, 2nd Floor Suite 6, Tom Mboya St.