Billions for centralised sewerage plants in 12MP

Ministry is currently exploring potential locations for the new plants which will be constructed in 6 years


THE government is expected to spend billions of ringgit to establish more centralised sewage treatment plants (CSTPs) throughout the nation which will be part of the 12th Malaysia Plan (12MP).

Land, Water and Natural Resources Minister Dr Xavier Jayakumar said the ministry is currently exploring potential locations that could house the new plants which will be constructed in the next six years.

“In 12MP, we will have new projects with some of the locations being identified in different states such as Kelantan, Pahang and Johor,” he told the press after commemorating the first liquid flow of the Langat CSTP in Kajang, Selangor, yesterday.

Apart from Selangor, other states that have already adopted the regional sewage treatment system are Penang, Melaka, Negri Sembilan and Kuala Lumpur.

Langat CSTP, which cost RM1.5 billion, is one of the government’s megaprojects that began construction in November 2015 as part of the 11MP and 12MP.

The plant has the capacity to process up to 207,000 cu m of sewage a day — equal to 920 liquid of population equivalent (PE), covering 7,760ha area of Cheras and Kajang.

The project also includes a new 105km sewerage pipe. Langat CSTP treats effluents with “standard A” parameters before the water is released back into the Langat River.

Dr Xavier said the government is still assessing the cost and capacity of the new plants, which will be built according to the number of population in each area.

“We are yet to determine the total cost of every sewerage projects but taking the Langat project as an example, the new plants approximately would cost up to RM2 billion each. “Areas with a lower population like Pahang, which may only have about 300,000 of PE, will get a smaller scale plant with lower cost,” Dr Xavier said. Langat CSTP, which sits on a 7.3ha of land, is constructed by MMC Pembentungan Langat Sdn Bhd.

The plant is expected to be handed over to Indah Water Konsortium Sdn Bhd (IWK) by 2023.

Yesterday, 60,000 PE of sewage went into the sewerage, which is also expected to receive more than 230,000 PE by early next year.

Dr Xavier said in the long run, the plant would be able to accommodate future demands to an extent of between 20 and 30 years.

He said with the Japanese technology adaptation of Deep Aeration Method and Step-Feed Multi Stage De-Nitrification, the treatment plant could remove up to 80% of ammonia and nitrogen, in tandem with the Department of Environment’s standards.

“This plant is also expected to be gradually replacing all of the 232 small treatment facilities existing in the Cheras and Kajang areas, which are very old and less efficient.

“The regionalisation of sewerage project is the long-term solution to protect our water source and reduce pollution,” Dr Xavier added.

Meanwhile, MMC Corp Bhd COO (technical and engineering) Mohd Razin Ghazali said the project is expected to be completed on time by 2021, before it could be tested together with IWK within the next 24 months.

Currently, the project owner has already installed about 90km of sewage pipeline while the remaining of the pipe works would be completed next year.

“When all of these pipes are installed, we will look forward to decommissioning the old plants accordingly. In total, we have 268 areas, equivalent to about 80 football fields,” Mohd Razin said.

He added that by the time the plant reaches the 230,000 PE of waste intake, the system will work on an optimum level and should be producing the best results.