CHAPTER 14 - Iskandar Malaysia

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SECTION B PLANNING AND IMPLEMENTATION C. Individual Septic Tank (IST) Table 14.20: IST in the SJER, 2002 Local Authority Majlis Bandaraya Johor Bahru 10,534 52,670 Majlis Perbandaran Johor Bahru Tengah Bil IST PE 31,693 158,465 Majlis Daerah Kulai 16,211 81,055 TOTAL 58,438 292,190 Sources: IWK, Unit Perancangan Wilayah Selatan, 2002 Note: PE = Population Equivalent D. Existing Requirements SJER lacks a modern sewerage system and most households rely on individual septic tanks in the city of Johor Bahru. This is main source of pollution for many of the rivers in SJER and measures need to be taken to resolve this issue. Table 14.21: Demand of Sewerage System in the SJER Local Authority Majlis Bandaraya Johor Bahru Majlis Perbandaran Johor Bahru Tengah Population Equivalent, PE Existing Demand Balance 175,720 577,413 -401,693 607,924 521,354 86,570 Majlis Daerah Kulai 141,782 161,326 -19,544 TOTAL 925,426 1,260,093 Sources: Source: SJER CDP 2025 E. Projection of Land Required for Sewerage Treatment Plan The future sewerage treatment system shall be mechanical and a total land area of 195 acres will be required by the year 2025. Table 14.22: Projected Land Requirements for Sewerage Treatment Plants City Council Required Land For Sewerage Treatment Plan (acres) 2000 2005 2010 2015 2020 2025 MBJB 26 30 32 38 47 59 MPJBT 24 29 35 46 60 75 MPKu 8 8 9 11 14 17 PDJB 10 11 12 14 18 22 PBTPG 3 10 12 15 18 22 SJER 72 88 100 124 156 195 Note: Land for Mechanical Sewerage Treatment Plant F. Proposal For Eco-Friendly Sewerage Treatment The proposed sewerage treatment system for SJER combines both primary and biological treatment in order to ensure effluent complies with Standard A of the Environmental Quality Regulations (Sewage and Industrial Effluent), 1979 and Class 1 of the National Water Quality Standard before being discharged into any rivers or water bodies. The Up Flow Anaerobic Sludge Blanket/Continuous Sequencing Batch Reaction (UASB/CSBR) treatment system shall be adopted for primary treatment. The UASB reactor is an anaerobic biological treatment system requiring no energy to operate. The sewage is anaerobically digested with potential Biological Oxygen Demand (BOD) reductions of 50% to 70%. Methane gas generated from the process shall be stored to be used to generate power for the plant. 14 - 16
URBAN INFRASTRUCTURE CHAPTER 14 | PART 4 Figure 14.5: Example of a Centralised Mechanical Sewerage System H. Proposed Sewerage Treatment and Its Cost Majidee, Bandar Nusajaya, Kulai and Tanjung Langsat have been identified for proposed centralised sewerage treatment plant. These sites are located within the various local planning authority areas and will cost a total of RM 339,575.000. Coarse Screen Fine Screen Pumping main from Vacum Station/Pumping Station Grit/ Grease Removal Chamber Sludge Drying Beds air pipe Equalisation on tank Waste Activated Sludge air flow Anaerobic Upflow Sludge Blanket Reactor SBR Tank Waste Sludge Sludge Pumping Chamber By Pass Line U.V Disinfect Ion Rotary Drum Thickene R Centrifu GE Wetland for Effluent Polishing Sludge Storage Final Effluent Disposal/ Reuse Table 14.23: Proposed Project Cost for Sewage System Zone 1 – MBJB No. Project Location Project Cost Proposed Agency 1 Proposed main sewerage pipe lines 9,450,000 JPP/IWK 2 Proposed manhole 4,725,000 JPP/IWK 3 Proposed central mechanical sewerage treatment plan Majidee 126,000,000 JPP/IWK Total 140,175,000 Zone 2 – MPJBT No. Project Location Project Cost Proposed Agency Source: SJER CDP 2025 1 Proposed main sewerage pipe lines 4,410,000 JPP/IWK 2 Proposed manhole 2,205,000 JPP/IWK 3 Proposed central mechanical sewerage treatment plan Bandar Nusajaya 63,000,000 JPP/IWK Total 69,615,000 Zone 3 – MPKu No. Project Location Project Cost Proposed Agency Examples of Centralised Mechanical Sewerage System G. Industrial Waste The handling of industrial sewage must also follow the set guidelines and policies. A detailed study must be conducted for all industrial facilities which discharge industrial waste. All samples from the operator or the owner of the industrial facility must be handed over to the local authorities for control purposes. 1 Proposed main sewerage pipe lines 1,890,000 JPP/IWK 2 Proposed manhole 945,000 JPP/IWK 3 Proposed central mechanical sewerage treatment plan Kulai 63,000,000 JPP/IWK Total 65,835,000 Zone 5 - PBT Pasir Gudang No. Project Location Project Cost Proposed Agency 1 Proposed main sewerage pipe lines 900,000 JPP/IWK 2 Proposed manhole 50,000 JPP/IWK 14 - 17
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CHAPTER 14 - Iskandar Malaysia

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