Having worked as
a sanitarian, or environmental health specialist at the county level, and having
seen a housing development on hillsides surrounding a lake and the poorly
performing individual septic systems, I can certainly understand why a sewage
treatment plant for the whole housing development would be desirable. After
going in through a manned gate, it could take 20 minutes to get from one side
of the lake to the other due to the steep and narrow roads. One thing that was
prevalent there was the smell of sewage, indicating the many failing septic
systems. These days, such a development would likely be designed with a
communal sewage treatment plant, which would be the most effective sanitation
method.
LARCO India is touting a sewage
treatment plant with water-saving, cost-saving, and water recycling features,
along with modern redundant treatment methods. LARCO was founded in 1998 and
specializes in Wastewater treatment, Sewage Treatment, and Water treatment for
municipalities and industry. India is notorious for poor-quality public water
and sewage systems like many developing countries. Its public water systems
were plagued by extensive leaks, according to a book I read about water in the
2010s. LARCO is located in the state of Maharashtra, India, where wastewater
and sewage pollution are environmental concerns. They offer turnkey sewage
treatment plant solutions with modular components.
LARCO’s sewage treatment plant
design for housing societies features six stages of operation: 1)
Preliminary Treatment, which captures large debris and grit that could harm
equipment; 2) Primary Treatment, which involves slow settling of
particles into a settling tank; 3) Biological Treatment, which involves
the deployment of microbes to break down matter via advanced
technologies such as a Moving Bed Biofilm Reactor (MBBR), a Sequential Batch
Reactor (SBR), and an Activated Sludge Process (ASP). These result in a
reduction of Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD),
a primary goal of sewage treatment; 4) Secondary Clarification involves
separating treated water and biological sludge, the latter of which is disposed
of safely; 5) Tertiary Treatment utilizes pressure sand filters,
activated carbon filters, UV, or chlorination to remove remaining impurities
and pathogens; and 6) Water Reuse, for non-potable uses such as
flushing, gardening, and cleaning.
They also list six benefits of
sewage treatment plants: water conservation, lower water bills, environmental
protection, regulatory compliance, improved hygiene, and sustainable living.
“A Sewage Treatment Plant for Housing Society is no
longer a luxury—it is an essential infrastructure for modern residential
developments. By treating and reusing wastewater, housing societies can reduce
water consumption, lower operational costs, protect the environment, and comply
with pollution control regulations.”
References:
Sewage
Treatment Plant for Housing Society: Benefits, Working & Water Reuse. LARCO
India. Blog. Sewage
Treatment Plant for Housing Society by LARCO India
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