Waste Water Recycling & Re-Use

[attachment=16418]

Wastewater

Wastewater (WW) is a
combination of the liquid, or
water carried wastes,
removed from domestic,
institutions, commercial and
industrial establishments
together with surface/ ground/
storm water.


Wastewater Treatment and Reuse
Some Key Safeguards for agricultural reuse
• safeguard the health of people who eat produce grown in
recycled water, residents of neighborhoods near irrigated areas
• Safeguard the health of operators of irrigation in contact with
untreated or partially treated waste water.
• The prevention of contamination and degradation of land,
ground water as well as escapes to surface water sources.
• Regulating the level of nutritional material liquefied in water
and suitable corrections to meet the requirements of the
vegetation; protection from residue levels.


Waste Water Reuse
• Informal, unguided, illegal, unplanned –direct and
indirect use of raw, partially treated, or diluted
wastewater is carried out in many regions of the
world, specially in developing countries
• Use of untreated or inadequately treated WW for
irrigation has important health implications for
consumers, vendors, farmers and their families and
communities
• In case of reuse of WW, more attention should be
given on the negative impacts rather than positive
impacts


ICID CPSP Studies
• A simplified excel model was used for integrating
ground and surface water usages and flows as
well as GW regime; it is dynamic
• Integrating land & water uses as well as that of
people sector and nature sector
• Helped a better appreciation of impact of future
scenarios based on different setting
• Brings out useful indicators for the policy
decisions on management of water quality and
quantity of any basin based on possible
emerging scenarios