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Revitalization of Rivers in India Draft Policy - Isha Guru Jaggi Vasudev

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<strong>Revitalization</strong> <strong>of</strong> <strong>Rivers</strong> In <strong>India</strong><br />

<strong>Draft</strong> <strong>Policy</strong> Recommendation<br />

predom<strong>in</strong>ant as on date.<br />

●●<br />

●●<br />

●●<br />

●●<br />

Activated Sludge Process (ASP)<br />

Extended Aeration<br />

Upflow Anaerobic Sludge Blanket (UASB)<br />

Trickl<strong>in</strong>g Filter (TF)<br />

(ac)<br />

Some Recent Technologies: These k<strong>in</strong>d <strong>of</strong> systems are recent but are<br />

gett<strong>in</strong>g <strong>in</strong>creas<strong>in</strong>gly popular<br />

●●<br />

Sequential Batch Reactor (SBR)<br />

●●<br />

Membrane Bioreactor (MBR)<br />

●●<br />

Mov<strong>in</strong>g Bed Bi<strong>of</strong>ilm Reactor (MBBR)<br />

●●<br />

Integrated Membrane Processes (UF-RO, MBR-RO, UF-RO-<br />

EDR)<br />

(ii) Decentralised<br />

(aa)<br />

Conventional Systems:<br />

Many <strong>of</strong> the above mentioned centralised systems are available for use at<br />

a decentralised level. More popular among them are ASP, SBR, MBR and<br />

MBBR.<br />

(ab)<br />

Membrane based treatment systems:<br />

Over the past three decades, there has been a world-wide <strong>in</strong>crease <strong>in</strong> the<br />

number <strong>of</strong> water treatment plants employ<strong>in</strong>g cost-effective membrane<br />

based wastewater treatment technologies <strong>in</strong>volv<strong>in</strong>g membrane bioreactors<br />

(MBR) and reverse osmosis (RO). Such technologies have been successfully<br />

developed and applied <strong>in</strong> countries such as S<strong>in</strong>gapore (e.g. NEWater process<br />

for wastewater reuse). These can be leveraged for decentralised treatment<br />

applications <strong>in</strong> <strong>India</strong> at po<strong>in</strong>t <strong>of</strong> generation <strong>of</strong> waste to prevent direct<br />

discharge <strong>in</strong>to rivers, lakes and other aquifers. However, the management <strong>of</strong><br />

rejects from RO Plants will need to be properly and effectively addressed.<br />

(ac)<br />

Alternative Systems:<br />

As the names suggest, the alternative systems differentiate themselves by<br />

undertak<strong>in</strong>g wastewater treatment us<strong>in</strong>g methods / pathways that deviate<br />

334 Annexures

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