We specialised in decentralized waste water treatment solutions for domestic and commercial waste water applications through our cooperation with our German Technology Partner LKT.  Our key focus lies on residential compounds, hospitals, hotels and resorts, shopping malls, airports, railways stations, schools, universities and office buildings.

A decentralized waste water treatment system has two main pillars; (1) Cost reduction & (2) Recycling

(1) Cost Reduction

Investment- and maintenance cost reduction of centralized sewer networks.  However, it is important to note that decentralisation is not a replacement of a central waste water treatment system, but a supplementary component to achieve an economical balance between financial constraints and full scale environmental protection.

Decentralised waste water treatment solution is most economical in suburbs and rural areas with villages of up to 2,000 inhabitants. Only one or a few (depending of the requirements) small waste water treatment plants and a smaller sewer network, connecting estates of the village to the plant, are sufficient. In special cases, even several smaller plants for 4-50 PE’s can be installed, if those estates are too far away to be connected to a local sewer network.

(2) Recycling

Another key benefits of decentralized waste water treatment is the recycling of treated waste water. A centralized treatment systems will have difficulty to achieve this because they receive domestic waste water and industrial waste water (which contains numerous uncontrolled concentrations of heavy metals and various other pollutants).  The level of the concentration will be difficult to estimate, and may provide an inaccurate picture at the design stage of the plant, resulting in difficulty in cleaning at a later stage.

Decentralised treatment systems, receiving waste water from smaller connected areas, are more predictable in terms of existing pollutants in the waste water.  The system also supports the reuse of cleaned waste water to a much higher degree on an economical scale because the waste water treatment can be adapted more easily to the intended re-use options in specific areas.

Purified and disinfected waste water from decentralized plants can be used for irrigation purposes, e.g. farmland watering, garden watering, toilet flushing water. The activated sludge (a result of our biological treatment) is suitable as a natural soil fertilizer.

In areas with long dry period, low ground water level and/or high salt concentrations in the ground water, mainly the costal areas, can benefit from the re-use of treated waste water as part of an integrated concept for water management systems.

Today treated water can be re-used in many ways

• flushing toilets
• watering plants, flowers 
• Irrigating farmland