Background |
Ahmedabad
CTM
CTM (Gate)
Unlined Canal
Amraiwadi |
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Kharicut, which lies on the eastern side
of Ahmedabad city, an extension from the river Khari, was essentially built
for supporting irrigation facilities for villages like Nikol, Odhav, Vatva,
Ramol, etc. It also provides an artificial water recharge system for almost
all the villages around it. But due to urban sprawl of the city, factories
started lining up along the edge of the canal. After since, there have been
recurring allegations that these factories dump pollutants in the canal,
which can be spotted clearly (except monsoon). Along with the factories, that
dump the waste into the canal there has been uncontrolled housing
development, parallel to the factories, also dump their waste into canal and
few of them uses soak pits for drainage. Following the judgment by the court the
industrial units were ordered to dump waste, that could not be completely
treated within their own premises, at appropriate collective dumping site
i.e. respective GIDC’S CETP (Common Effluent Treatment Plant). The regulation
was passed to enable factories, which could not afford a secondary level
treatment unit within their premises and had to look for different places to
dump the wastes. Some units found guilty were penalized and
the amount was to be used for clearing the waste that is already dumped into
Kharicut. Even with the law in place the authorities are unable to stop the
industrial units from dumping wastes into the canal. The problem of pollution in the canal has
been realized by agencies like the GPCB, Irrigation Dept., as well by
Planners. It might get solved in future but by covering the canal, so that
waste can be dumped into the canal without being noticed, and the canal might
get converted to a sewer, which is what it is today, an open type. The
canal, which stretches along the city, is used for nothing more than a
dumpsite. |
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Initial response to the Site
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To bring active as well as responsible agencies to the site,. ·
Diffusing concentration in order to open areas to explore i.e. not
taking the market as the only governing force, but also assign areas for
governing/regulatory agencies. ·
The program might not be static with respect to site. It might evolve
overtime considering the requirements as per later development. But to start
with it is important to deploy agencies that would monitor the pollution of
the canal and take necessary actions. ·
Consider the outline for
extension due to future developments. ·
To bring welfare agencies together at a point where they could
‘interact’. ·
Using the built feature of canal as a basis for design.. ·
Responses to similar features within the city. For example, the site
has similar characteristics as Sabarmati river. ·
Questioning the processes by which demarcations happen within a given
context - city-outskirts, majur-gam, Asarwa, Bapunagar, and
Nikol etc. ·
To make active and responsible mechanisms to percolate into every part
of the city. ·
User activity could be included as per site - School, Health Center,
Dispensary / Hospital, Housing, Police Station, Shopping Center, Public Park,
Restaurants / Food Places, Agriculture |
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Objectives
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1. To
identify control points, along the stretch of Kharicut, wherein, responsible
agencies and monitoring units will be placed. 2. To bring at one place - active as well as
responsible agencies, finding common and shared functions between them and
diffusing them with user-activity. The proposal does not look into the development of Kharicut in form of layers but rather proposes a continuous intervention that would focus on an urgent and important issue. |
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Assumptions for building a design
proposal |
Assumption A.1
Assumption A.2
Assumption B.1
Assumption B.2 |
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A. Assuming
that the canal is not used for irrigation anymore
B. Assuming that the canal is perennial 1.
The canal is
covered, o
the canal is
inaccessible to public o
it stops waste from
being dumped into the canal. (this would sure reduce the amount of waste
dumped in the canal but the actual problem of villages, where the canal is
not lined, remains) 2.
The canal is open o
edges of the canal
need to be developed such that it is accessible to the public o
the canal will be
prone to dumping of wastes o
water, in the canal,
requires to be completely or partially filtered before it flows into fields.
(this would also require a secondary system that allows for filtering /
treating of the water) The proposal takes into account
Assumptions B.1 and B.2, and includes it into the program as: B.1 - Monitoring Units –
B.2 - ISWMP Institute –
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Scenarios
and Simulation results
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The results in table 1 are supported by
Research Thesis of students of School of Planning, who have conducted
simulations with possible variations in existing conditions, and experiments
concerning the state of the canal.
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Note: Fresh water input at present is Rain, as Khari river is a rain
fed river
Table 1: A summary of possible variations within existing situations |
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Design Proposal |
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Study 1 - [Table 1] Two specific conditions for the program to work with (Scenarios 3, 4). Out of which the program emphasizes the condition in Scenario 4, where there are waste inputs from all three GIDCs and a need for freshwater input. Suggested alternatives for treatment/discharge methods (in order of preference) 1. Dilution by rainwater discharge 2. Treatment for agriculture use 3. Treatment at AMC Plant 4. Treatment for industrial use
Study 2 - Suggested institutional structure: An ISWMP Institute be brought under one institutional body, comprising of representatives from GPCB, AMC, and Industries, including a Research Cell and public utilities. The project proposes treatment and monitoring units along the stretch of Kharicut canal. Major nodes for monitoring and dilution units are GIDC Naroda and Odhav. Dilution units consist of water storages. The water supplied to these units could be from existing water-pumping stations or by making new storage units, which could also serve as a public place for that area. Main filtration unit is placed at Vatva where from the unlined portion of the canal starts and is dispersed into the fields and residential areas around Hansol, Vinzol, etc. The unit provides treatment of chemicals and solid waste. The
monitoring units consist of laboratories and GPCB offices. They are placed
along the stretch with appropriate public amenities for the specific
locality. Odhav is considered the center of the Kharicut canal and hence an
ISWMP Institute comprising of Government, Non-Government, Industrial
Associations and Public-amenities is placed there to demonstrate the program.
A research unit focusing alternative
methods of treatment, waste minimization and production efficiency of industries around
GIDC and a library support these. |
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Sources: Study (1)
Industrial Waste, GIDC Vatva. Dinesh.
School of Planning thesis Study (2).
Naroda, Odhav and Vatva. Sahu School of Planning thesis |
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Program |
Land Use: Odhav
Odhav: Factories
Odhav: Housing |
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Laboratories / Sensing
Unit ·
Administration and
Services - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ISWMP Institute
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Water Supply and
Sewerage Department ·
Gujarat Pollution
Control Board
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Industrial
Associations ·
NGO working in the
locality (issues concerning industrial safety, women and child care,
education etc.)
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Dispensary (Health
Center supported by the Research Unit) ·
Exhibition /
Notification ·
Legal center
(supported by NG)
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Research and
Development ·
Parking Space |
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