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Reports of JCM/BOCM Feasibility Studies: FY2012

Title of Study JCM/BOCM Feasibility Study
Biogas-based Cogeneration with Digestion of Methane from Food/Beverage Factory Wastewater
FYFY 2012
Main Implementing EntityTepia Corporation Japan Co., Ltd.
FS PartnersInstitute of Environmental Technology, Vietnam Academy of Science and Technology (VAST-IET)
Location of Project/ActivityViet Nam
Category of Project/ActivityWaste Management
Study Report

Note: Preliminary drafts of MRV Methodology and Calculation Sheet are the result of the study. They have neither been officially approved, nor are guaranteed to be officially approved under the JCM/BOCM.
Description of Project/ActivityIn Viet Nam, there are over 400 bear plants and the number of tapioca plants is rapidly increasing. The production of food/luxury grocery goods is expected to be continuously increased and further environmental pollution has been concerned.

This project aims to remove organics from highly concentrated wastewater from 3 food processing plants (2 tapioca plants and 1 beer plant) in the suburb of Hanoi, Vietnam, and install UASB (Upflow Anaerobic Sludge Blanket)

By implementing UASB, highly concentrated organic wastewater discharged from the each plant is treated anaerobically to remove organic substances and recover methane. By implementing UASB before/after aerobic tanks or anaerobic lagoons, organic substance loads after the UASB will be mitigated, and it will lead to reduce the amount of air for aeration and to improve wastewater quality.

Also, micro cogeneration systems (power output; 25kW) generate electricity (power generation efficiency; 33%) and recover hot water (heat recovery rate; 51%), using bio-gas generated from UASB.
Eligibility Criteria
  1. To install high efficiency UASB and biogas generators and/or biogas boilers and/or biogas cogeneration systems.
  2. To recover biogas from biogenic organic matter in wastewater by high efficiency UASB. The COD removal efficiency of UASB is 85% or above.
  3. The biogas that recovered through UASB should be used for electricity and/or heat generation. The biogas quality could be improved.
  4. Un-used biogas due to capacity or demand of the equipment should be released to atmosphere after flaring.
  5. The energy generated (electricity and/or steam and/or hot water) should be consumed at the project site (self-consumption) or supplied to grid.
Reference Scenario and Project/Activity BoundaryThe project boundary is the physical, geographical site where the wastewater treatment takes place, in the reference and project situations. It covers all facilities affected by the project activity including sites where processing, transportation and application or disposal of waste products as well as biogas takes place.
Calculation Method OptionsIn prior the project, the Option A and B are provided according to the actual measurement ability of volume of the wastewater and COD concentration, and also in after the project, Option 1, 2 and 3 are provided according to the actual measurement ability of volume of the wastewater and COD concentration. The Options can be selected even if the actual measurement cannot be conducted.
Default Values set in MethodologyReferring to CDM methodology, IPCC's CDM methodology values or default values are adopted for CH4 correction factor, emission factors, CH4 producing capacity, and model correction factors.

When selecting Options that adopt designed values, the conservative correction factor (10%) is set to be multiplied.
Monitoring Method
  • Generated electricity, steam/heat. (measured in all Options)
  • COD concentration prior to the project. (Option A)
  • Amount of production manufactured. (Option B)
  • Amount of wastewater treated. (Option 1 and 2)
  • COD concentration after the project. (Option 1)
GHG Emissions and its Reductions
Phu My Tapioca
Tan Hieu Hung Tapioca
Viet Ha Beer
Reference Emissions [tCO2e/yr]
CH4 emissions from wastewater treatment system
CH4 emissions from wastewater discharged
CO2 emissions originated from generated electricity and hot water replaced
Project Emissions [tCO2e/yr]
CH4 emissions from wastewater treatment system
CH4 emissions from wastewater discharged in the project scenario
Emission Reductions[tCO2e/yr]
Method of VerificationFor cost reduction of the validation, its process should be as simple as possible, however, its accuracy must be secured. Especially when actually measured COD values, or other actually measured values or designed values are being adopted, its validity must be properly validated. Thus, the validation must be conducted by the third party validation entity that is familiar with water quality measurement and management.
Environmental ImpactsThis project is to mitigate environmental pollutants, and there are no controversial matters that could lead to new environmental pollution.
Financial PlanWithout credit income, the payout times for the 3 plants (Phu My, Tapioca, Tan Hieu Hung Tapioca, and Viet Ha Beer are 15.9, 31.6 and 8.8 years respectively.
With BOCM/JCM credit income (1,000yen/tCO2), the payout times would be shortened to 11.5, 21.5 and 8.3 years.
Promotion of Japanese TechnologyTo encourage initial investment of the proposed technology, various financial supporting schemes (subsidies) by Vietnamese Government or local government shall be discussed such as;
  • Buying GHG reduction under JCM scheme at higher prices
  • Subsidies for implementation of advanced wastewater treatment systems.
  • Subsidies for implementation of energy saving or energy generation technologies
Sustainable Development in Host CountryOffensive odors, toxic gas (hydrogen sulfide), and air pollution by reducing fossil fuel consumption are expected to mitigated, and water environment in the surrounding areas such as river, lake and ground water are also expected to be improved.

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