Monday, October 18, 2010

Septage Treatment @Surabaya City

Municipal Cleansing and Gardening Department (DKP) of Surabaya has built septage treatment plant (IPLT) in Keputih Sub District, Sukolilo District, East Surabaya.

IPLT - Keputih is one of the Technical Unit of Department (UPTD) of DKP in Surabaya that has the task of managing the septage waste treatment into compost in an effort to improve the quality of the environment, especially water quality caused by water pollution. IPLT has been operated since 1991, at ± 2 Ha area. IPLT use biological systems with mainly oxidation ditch. IPLT maximum capacity is 400 m3 / day otherwise the real use capacity is 100 m3 / day.

Consider to maximum capacity this plant just use 25% of operation capacity. Some causes are:
1. Most of septic tank do not meet requirement standard, therefore not so many septic tank have desludge in 2 – 3 years.
2. There is illegal private company do not register in DKP Operation Unit. On the other hand just 28 legal private companies with 69 private trucks are registered in DKP and dispose to IPLT. So the remaining private company remove sewage sludge directly into the river.
3. No controlling from municipal government about technical standard of septic tank construction and intend to septic tank owner about timing to empty septic tank.

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