Vzhinjam- A success story
Business Model and Financial viability of
family size bio waste treatment biogas plants
Installed by BIOTECH, Kerala
in
Vizhinjam Grama Panchayath, Thiruvananthapuram District
Vizhinjam is
one of the nearest Grama Panchayaths in the Thiruvananthapuram Town
Awareness
Programme for Grama Panchayath members
As a beginning BIOTECH conducted an awareness
programme for the Grama Panchayath
members with a view to educating them about
the possibility of hygienic disposal of waste and the generation of energy from
waste. BIOTECH conducted a site visit
along with the members of the Grama Panchayath and the beneficiaries who have
already installed these plants. It has been observed that all of them were
fully convinced and highly impressed about the performance of these plants. After
this visit they had discussed about the various aspects connected with the
implementation of this domestic system in a larger scale and requested BIOTECH
to conduct an awareness programme for the benefit of the public in the Vizhinjam
Grama Panchayath and also requested to submit a concept proposal.
Awareness
Programme for the Public
Selection
of volunteers
For the effective
feasibility study BIOTECH selected volunteers from among those who were
interested and experienced in field survey and evaluation. Accordingly 30
volunteers were selected and they were trained for a period of one week for the
selection of suitable sites for the
installation of plants in houses after assessing the availability of feed
materials, transportation facilities etc.
In addition to the
volunteers, 10 technical experts from BIOTECH had also been selected to closely
observe the programme under the supervision of a Programme Officer who was
competent to implement this project.
Feasibility
Study
The trained volunteers
conducted the feasibility study and selected 600 applicants as a first
phase
after collecting preliminary documents from the beneficiaries. The volunteers
were also provided with the second stage training for the installation of the
plants.
Approval
of the Project
After getting the concept
proposal approved by the Grama
Panchayath BIOTECH prepared detailed project
proposals and submitted them along with the 600 applications collected from the
beneficiaries. The Grama Panchayath decided to install 575 plants as a first
phase.
Application
of the technology and model of the plant
Bio methanization
technology was selected for the hygienic disposal of waste. The main advantage
of this system is that along the solid waste, organic waste water can also be
treated hygienically. Another main advantage is that biogas – a renewable
source of energy and organic fertilizer can also be produced.
The model of the treatment
plant selected is floating dome model with Re-inforced Cement Concrete (RCC)
Digester. The specialty of this model is that the installation of the digester
can be completed within four hours. In the brick constructed digester model the
installation time is between 6 to 7 days and the need of skilled technician is
highly essential. But in the case of RCC digester model any semi skilled person
can undertake the installation of the digester successfully. The installation
cost is also cheaper compared to traditional models. The RCC digester with
fibre glass floating dome model plant as designed and developed by BIOTECH had
been approved by the Ministry of New and Renewable Energy, Govt. of India.
Project Cost
The installation cost of 1
Cum plant was Rs. 8,200/- out of which Rs. 4000/- will be the financial support of the Grama Panchayath, Rs.
3,500/- the subsidy from Ministry of New and Renewable Energy (MNRE) and Rs.
700/- is the beneficiary share. For the implementation of 575 plants the Grama
Panchayath had spent Rs. 23 lakhs and the subsidy from MNRE is Rs. 20 where as the beneficiary share was Rs. 4.00
The total cost of the project was Rs. 47 lakhs.
In addition to the
beneficiary share all beneficiaries are to be involved for the excavation of the
pit, and the procurement of the cow dung for the initial feeding of the plant.
Production
and supply of materials
BIOTECH decided to start
the local production of digesters so as to avoid the delay in the
implementation of the project and to minimize transportation expenses.
Installation
of Plants
For the timely successful
completion of the project BIOTECH decided to select the unemployed youths for
the installation of the plants. 20 persons were selected and trained for the
purpose. The trained peoples have been arranged into 10 groups and each group was
to install one plant per day. As a result of this the installation team of BIOTECH
was able to complete the work within 60
working days.
BIOTECH is producing and
supplying gas collector, stoves and gas supply pipe lines from its own
centralized production centre.
Activation
of the plants
The beneficiaries will
start the feeding of the plant as per the guidance of technicians provided by
BIOTECH. After feeding, the gas holder
has to be fixed in the digester and pipe lines are to be properly connected. For
this purpose BIOTECH had issued instructions in the form of Users Manual to all
beneficiaries and also providing training in waste feeding and operation of the
plant.
Preparation
of documents
After the successful
installation of each plant BIOTECH will collect subsidy applications from the
beneficiaries and will take photograph of each plant along with beneficiaries
for future records.
Follow up
activities after the installation
After the completion of the
installation of the plants BIOTECH started an information counter with a
trained technician for providing service support to the beneficiaries. On getting
the request from the beneficiaries for the servicing of the plants, this
technician will be visiting the plants and rectifying the minor defects.
Evaluation
of performance of plants
BIOTECH will be conducting
performance evaluation survey on half yearly basis. During the evaluation it has
been observed that all plants are working without any problem. After the
successful completion of three years BIOTECH had conducted evaluation programmes
of the plants installed and found that 98 % plants are working perfectly. 2%
plants are not functioning properly due to the shifting of accommodation and
other personal inconvenience of beneficiary concerned.
Benefits
of the scheme
a. Beneficiaries :- Each beneficiary is
able to treat 2 Kg. of organic waste and 20 – 30 litres of waste water
generated from the Kitchen. With the help of their own bio waste treatment
biogas plants each beneficiary can produce 1 Cum biogas every day. It is sufficient to
meet more than 50% of their cooking
needs. The treated organic waste water coming out from the plant is utilized
for the vegetable cultivation in the kitchen garden.
b.
Local Bodies :- Through the
installation of 575 plants the Grama Panchayath was able to manage the
effective treatment of 1150 Kg. of waste at the source itself where they are
generated. The organic waste water discharged from the houses can also be treated
in the houses itself. In this way 17250 litres of organic waste water is also being
treated anaerobically. Ultimately the health condition of the beneficiaries who
have installed these plants have been improved. Now they are not throwing out
their own organic waste and waste water to the neighbors grounds or in public
places.
Environment
Benefits
Through the installation of
575 plants everyday, 575 Cum biogas is being captured from organic waste
materials and waste water. The annual biogas recovery is 209875 Cum. It is
equivalent to 2012 metric tons of carbon di oxide.
Financial
Benefits
1 Cum biogas is equivalent
to 0.5 Kg. of LPG. Through the installation of 575 plants the consumption of 104937 Kg. of LPG can be
saved every year. Through the utilization of carbon credits from the plants
every year each beneficiary is able to generate 3.5 CDM. BIOTECH is in the
preparation of CDM project for providing the benefits to all the 575
beneficiaries.
Conclusion
This type of decentralized
waste to energy plants help the public to participate in renewable energy
generation and environmental protection activities at a time. For these the liberal
support from the Government as well as from Private Institutions are highly
essential.
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