Showing posts with label Engineering. Show all posts
Showing posts with label Engineering. Show all posts

National Water Mission

The National Water Mission is one of the 8 National Missions which form the core of the National Action Plan for Climate Change.Water scarcity from being merely a topic for decision is becoming a harsh reality and if judiciously utilized and valued, might even become as precious as oil. It is already second to oil in importance and unless conserved might even become a paid resource. Nobody would want to pay for water although some are already doing so albeit for portable water. (Know more about Earth’s water distribution and Indian scenario.
The objective of National Water Mission is "conservation of water, minimizing wastage and ensuring its equitable distribution both across and within States through integrated water resources development and management"
Five goals identified in the National Water Mission are Comprehensive water data base in public domain and assessment of the impact of climate change on water resources; promotion of citizen and state actions for water conservation, augmentation and preservation; focused attention to vulnerable areas including over-exploited areas; increasing water use efficiency by 20%; and promotion of basin level integrated water resources management. 

Salient features of the National Water Mission are-

Sequencing Batch Reactors(SBR)

An Efficient Alternative to Wastewater Treatment

Introduction

The Sequencing Batch Reactor (SBR) is an activated sludge process designed to operate under non-steady state conditions. An SBR operates in a true batch mode with aeration and sludge settlement both occurring in the same tank. The major differences between SBR and conventional continuous-flow, activated sludge system is that the SBR tank carries out the functions of equalization aeration and sedimentation in a time sequence rather than in the conventional space sequence of continuous-flow systems. In addition, the SBR system can be designed with the ability to treat a wide range of influent volumes whereas the continuous system is based upon a fixed influent flowrate. Thus, there is a degree of flexibility associated with working in a time rather than in a space sequence [1].