Kg Selamat pig farms sending waste to biogas plant, says Penang exco

All pig farms in Kampung Selamat, Tasek Gelugor, have been sending livestock waste to a biogas plant in Ampang Jajar since May 4 to control pollution and odour problems in Sungai Kereh.

State local government, town and country planning committee chairman H’ng Mooi Lye said this was to control the discharge of livestock waste into the environment, particularly drains flowing into Sungai Kereh.

The Penang veterinary services department also applies useful microbe-activated solutions into public drains in Kampung Selamat on a weekly basis, he added.

“These mitigation measures help control pollution and reduce odour in the area. The department is also inspecting pig farms and taking enforcement action to ensure that breeders comply with livestock waste management requirements,” he told the Penang state assembly.

H’ng was responding to Bukhori Ghazali (PN-Pinang Tunggal) about state government measures to address odour pollution in Sungai Kereh.

He said Regulation 25(2) of the Pig Farming Licensing Regulations (Penang) 2020 stipulates that licence holders must keep ammonia gas concentration inside enclosed pens below 20 parts per million (ppm), and hydrogen sulphide below five ppm.

Gas meter readings in the enclosed pens remained within permitted limits, he added.

H’ng said the readings refer only to gas concentration inside the pens and do not directly represent the water quality index or odour levels in Sungai Kereh.

He said the state government also plans to clean up Parit Cina and Sungai Kereh from the first quarter of 2027 to remove accumulated sediment, improve water flow and reduce pollution.