Luzon Sanitation SummitMUNTINLUPA CITY
April 23, 2008
MUNTINLUPA CITY
The SOUTHERN GATEWAY to
Metro Manila & CALABARZON
PROFILE• Area: 46.7 square kms.
• Nine barangays
• Population: 420,000
• Classified as a Highly Urbanized City
• Residential/Commercial/Light to Medium Industry
• No. Of Households: 78,016 (370,333)
• No. of Business Establishments: 9,000+
• Population concentrated at the eastern portion (lakeshore area)
• No. of densely populated areas (depressed areas):184
• No. of subdivision/villages: 80
• Sewered Area: 1) Brgy. Ayala Alabang (19,644 HH); 2) Filinvest Corporate Area
LAGUNA LAKE
TOTAL LAKE AREA: +90,000 HAS.(City of Muntinlupa = +5,900 HAS.)
* AQUACULTURE* NAVIGATION* DOMESTIC H2O SUPPLY - Ayala Alabang Village - 300 MLD (Proposed)
SANITATION SITUATION
• Toilet & Septic Tanks: 60,000+ HHs & establishments (80%)
• Sewerage Coverage: 20,000 HHs & establishment (15%): Ayala Alabang & Filinvest area
• Improper Sanitation System (w/ toilet but direct discharge) (5%): mostly in depressed areas & informal settlements along the lake
ISSUES
• Only 2 areas in the Muntinlupa City is “sewered”• Major sources of pollution = domestic (70%)• Majority of households rely on septic tank system
– 1) Improperly designed (undersized)– 2) Poorly Maintained - “free flow”– 3) Obsolete design - w/ leaching chamber or open
bottom
• Water Utility Service (Maynilad) - No service in sewerage
• Groundwater = main source of domestic water
PROBLEMS
• Polluted water bodies: SW & untreated sewage• Groundwater contamination• Diarrhea cases: prevalent along the lakeshore
area & depressed areas• Land subsidence
PRE CWA STRATEGIES• Lake Ecosystem Rehabilitation and Protection
– Bantay Lawa/Lake Guards– Quarterly Lake Seeding– Paliko Creek Constructed Wetland Project (up to FS stage)
• River Rehabilitation Program– Sagip Ilog/Environmental Armies– Trash Interceptor System– Fencing/Declogging/De-silting Projects– Treeplanting
• Shore Land Development– Shore Land Tree Planting/Wetland Area Restoration
– Shore Land Rehabilitation and Development
• Enforcement/Legislation– City Ordinance No. 02-070
CITY ORDINANCE # 02-070
Prohibiting any person to discharge or disposeany untreated wastewater, sludge, oil, chemical,
or other waste to any part of the City ofMuntinlupa that will endanger the environmental
condition of the the City’s lake, rivers, creeks,and waterways with the corresponding
penalties thereof
POST CWA STRATEGIES• Enforcement/Legislation
– City Ordinance No. 04-020– City Ordinance No. 05-037
• LINAW Project– Infrastructure: Public Market WWTP– Social Marketing Information Education Campaign– Replication of Infrastructure to other facilities– Septage Management
• Established a Water Laboratory• Continuous “Free Drinking Water” Project (since 1995)
CITY ORDINANCE # 04-020
Regulating the abstraction of groundwater from its natural source within the
City of Muntinlupa with the corresponding penalties thereof
CITY ORDINANCE # 05-037
City ordinance & regulating the operationsof all water refilling station, seller, bulk waterdelivery tankers & other water establishment
for public consumption and the corresponding penalties thereof
LINAW PROJECTLocal Initiatives for Affordable Wastewater treatment Project
RATIONALE
• The Clean Water Act requires that within 5 years, all subdivisions, condominiums, commercial centers, hotels, hospitals, market places, and public buildings be connected to a sewerage system. In the draft law, LGUs are required to play a significant role
• 1/3 of illness due to water borne diseases, 18 deaths per day;
• Annual economic cost $1.3 Billion (overall)
LINAW APPROACH
• Involve stakeholders• Use social marketing• Promote appropriate technologies• Promote user fees for full cost recovery
OBJECTIVES
• Develop wastewater and sanitation action plans through a participatory stakeholder process, including the identification of short, medium and long term strategies;
• Implement incremental steps for low-cost technology solutions to address site-specific sanitation and wastewater management problems;
• Develop and implement a public awareness campaign regarding sanitation and wastewater problems, management issues, and technology and financing options;
• Build the capacity of LGU staff on designing low-cost wastewater treatment systems, packaging projects for funding, and developing public information campaigns.
SOLUTIONS
• Rapid Interventions– Wastewater treatment
system for the Muntinlupa Public Market (being manage by the CGM)
– IEC Program
– Incorporation of a community sanitation center & wastewater management design in at least two communities
• Long-Term Projects– IEC Program
– Wastewater treatment system (communal/ clustered systems) for other densely populated areas & other city development areas
– Development of a septage management system for the City of Muntinlupa
Public Markets Generate High-Strength Wastewater
Public Markets generate wastewater from:
• “Wet section” stalls – meat, fish, poultry
• Produce sales
• Public restrooms
• Prepared food area
Pre-treatment devices including screens & grease traps needed to protect treatment plant
Project Info
• Flow: 210 cu. meters/day• Stalls: 1445 wet and dry• Influent: 600 mg/l+ BOD• Effluent discharge: 15 mg/l
BOD (Class “C” limit + 50mg/l)• Area: 160 sq. m (underground)• Timeframe: 7 months
construction; operation started February 2006
Muntinlupa Public Market
Technology Selection
High cost and couldn’t keep parking lot
150 sq. meters$700$200,000Trickling Filter
High cost and couldn’t keep parking lot
150 sq. meters$700$200,000Activated Sludge
Too large1500 sq. meters$175$120,000Constructed Wetlands
Too large2000 sq. meters$175$80,000Lagoon
Selected150 sq. meters$500$140,000ABR/SBR Hybrid
RemarksLand
RequirementsO&M/MonthCapital CostTechnology
Plant Layout Schematic
TOILETS
WETSECTION OF
MARKET & FOOD AREA
ANAEROBIC BAFFLEDREACTOR + UPFLOW
FILTER
CLARIFIER
DISINFECTIONCHAMBER
MULTI-MEDIAFILTER
RE-USE* StreetCleaning* Fire* Toilets
DISCHARGE(Alabang River/Laguna Lake)
AERATIONTANK(SBR)
COCOPEAT BIOFILTER
IRRIGATION/PLANT BOX
Treatment Components* Raw wastewater pumping
* Anaerobic Baffled Reactor
* Sequencing Batch Reactor
* Media Filtration System
* Chlorine Contact and Reuse System
* Coco-Based Media Filtration System (side project: 3 cu. m.)
Anaerobic Treatment Process
Anaerobic Baffled Reactor
Advantages: Small footprint, no electricity required, relatively low cost and easy to operate and maintain.
Influent and Effluent Baffles and Flow Control Structures
Treatment Process
RAW WASTEWATER PUMPING ANAEROBIC BAFFLED REACTOR
SBR AERATION RECLAIMED WATER REUSE
Recycled Water System
• Filtered and disinfected water is pumped to a gravity holding tank then into the urinal/toilet flushing system
• Reclaimed effluent is also used for street washing/plant watering/fire water.
• Using reclaimed water saves on pumping costs and use of potable water obtained from deep wells (50% = Php 525/day = Php 15,750/month)
Coco Based Biofilter Unit
Cocopeat Filtration System•Attached growth process
•Utilizes coco-based material as filter media
• Provides high surface area and is very resilient in wastewater environment
• Timed dosing draws oxygen into the pore spaces, providing aerobic treatment and filtration
• Applicable for home, commercial establishments & resorts
• Modular & low cost
SYSTEM FLOW W/ MODULAR COCO-BASED BIOFILTER UNITSBORACAY SEAVIEW PRIVATE VILLAS
PUMP CHAMBER RAW WASTEWATERBAFFLED REACTOR
(PRIMARY TREATMENT) FROM TOILET/ ALREADY CONSTRUCTED BATH & KITCHEN
INLET PIPE FROM PUMP
BIOFILTER MODULES TO POND & WATER GARDEN4 UNITS (RECYCLED WATER)
(SECONDARY TREATMENT) 2.5 meters
2.5 meters
Project Cost: Public Market WW Treatment Facility
(amounts in thousand pesos)Description CostConcrete Masonry 2,639.0Others 754.0Sub-total Materials 3,393.040% labor 1,357.2
10% tax 339.3Earthworks 266.0
5,355.5
21% 1,124.7 Total Direct costs 6,480.2 Electro mechanical equipment 320.0Total capital outlay 6,800.2 One Year Operating Costs 336.0 Total Costs 7,136.2
Muntinlupa CitySchedule of Operating Expenses: Public Market WW Treatment Facility
(in thousand pesos) 1,000
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Salaries & Electrical Cost 324 324 324 324 324 356 356 356 356 356 Chemicals 2 3 3 3 3 4 4 4 5 5 Desluging cost 10 11 12 13 14 15 17 18 20 21 Total Operating Expenses 336 337 339 340 341 375 377 379 381 383 Assumptions:
1 Salaries and wages are based on LGU figures
2
8.75%
Item
Selected operating expenses will increase yearly by
Full Cost Recovery
• Cost to construct: 6.8 million pesos ($136,000)• Operational costs: 27,000 pesos/month
($6,720/year)• Reuse savings: 15,750 pesos/month
($3,600/year)
User fee structure: 5 pesos ($0.10)/stall/day.
1440 stalls * $0.10/day * 365 days = $52,000/year
Full cost recovery period = 3 years
PROPOSED ADDITIONAL PROJECT SITES• MUNTINLUPA “BAYWALK” PROJECT (Brgy. Bayanan along
the shoreline of Laguna Lake)– Daycare center, Recreational facilities, restaurants, barangay hall,
other commecial establishments.
– City Government Project
– 3 hectares
• MUNTINLUPA CITY-TESDA TRAINING CENTER– Located along the shoreline of Laguna Lake in Barangay Putatan
– City Government Project
– 1 hectare
• MUNTINLUPA SCIENCE & NATIONAL HIGH SCHOOL• “PACWOOD” SITE
– Barangay Tunasan
– Local Government Offices, Motor Pool, Material Recovery Facility (MRF) for Solid Wastes
– 4 hectares
COMMUNICATION & INFORMATION PROGRAM
• 5 YEAR PROGRAM
– Inform
– Educate
– Call Participation/Compliance
• COVERED BASIC ENVIRONMENTAL ISSUES & SANITATION PRACTICES
– Pollution of water resource
– Effect to the health & environment
– Adoption of on-site or decentralized systems
– Proper maintenance of septic tanks
– Septage Management & User Fee (Initial Compliance on CWA)
• TARGETED HOUSEHOLDS & SMEs
• USED DIFFERENT MEDIA (POSTERS/ADS/MALLS TOURS/ COMICS)
SOCIAL MARKETING & INFORMATION/EDUCATION PROGRAM
Integrated Wastewater and Septage Management Program - Organisational Structure
DESLUDGE OPERATION
ZONES 1, 2, 3 and 4 ZONE 5, 6, 7 and 8 ZONE 9, 10, 11 and 12SANITARY SYSTEM INSTALLATION
FEE COLLECTION
CITY SANITARY BUREAU
Muntinlupa City Government
PrivateContractorNo.1
PrivateContractorNo.2
PrivateContractorNo.3
Residences Commercial/Public/Institutional
Industrial
Dept. of Health
Treasury
PROPOSED SEPTAGE MANAGEMENT PROGRAM
Lessons Learned/Conclusions• Interest and replication have
been high because many facilities face the same problems
• Full cost recovery is feasible with low-cost technology and user fees
• Local government leadership and ownership is key
• Important to build support and willingness to pay fees using effective social marketing campaigns thus encouraging stakeholders participation
THANK YOU!
“WORKING TOGETHER FOR A BETTER CITY OF MUNTINLUPA”
Mayor Aldrin L. San Pedro
JET D. PABILONIALINAW - MUNTINLUPA CITYContact: 5430594/8622525
0920-4829369 0917-7392384 [email protected]