Completed in 2005, this plant supplies drinking water to the expanding city of Tenggarong in East Kalimantan. This city is targeted for major development as a tourism center. The Envitech EPC contract comprises a 100 litres/second WTP and a 50 litres/second WTP at a different location. Both plants treat deepwell water which has a high iron content.
Although the treatment process is conventional, a feature of the plant is that all tanks and vessels are of stainless steel construction, as specified by the Client.
At this city in East Kalimantan the only available water is from deepwells and has a very high iron content. Envitech supplied a 150 litre/second Water Treatment Plant plus two smaller plants each of 20 litre/second capacity. The plants use conical sludge-blanket Clarifiers and conventional Sand Filters. The main plant is built as three x 50 litre/second lines, with tank construction specified in steel.
Sentul Private Water Supply
This is a 100 litre/second conventional treatment plant to produce drinking water from a river water supply, located near to Bogor, West Java. It is designed for expansion to 300 litres/second. This is a high-specification project with International Consultant and was won against international competition.
The main plant is a single concrete structure consisting of two Clarifier and three Gravity filter basins. The Clarifiers are sludge-blanket, flat-bottom type, and can handle the variable quality of river water supply.