Most water analysts are using DPD kits and colorimeters to measure free chlorine residual, but there is a better way.

Photocatalysis is an advanced oxidation process aiming at the complete conversion of harmful and toxic dissolved contaminants in natural or drinking water into carbon dioxide, water and inorganics in presence of semiconducting materials such as TiO2 and ZnO, which act as catalysts.

Constructed wetlands (cws) for wastewater treatment may be part of the answer to the urgent need for a change in the approach to wastewater treatment in developing countries. Although thailand has several cws, there have been no studies of their sustainability. To remedy this, the sustainability of three promising cws in very different settings was assessed. These were located at koh phi phi, a world-renowned international tourist and holiday resort; sakon nakhon, a northeastern provincial capital; and ban pru teaw, a small post-tsunami village on the andaman coast.

The WEPA Outlook is the flagship publication of WEPA which includes basic information on the water environment and its management in each WEPA partner country. The Outlook 2012 consists of three main chapters. Chapter 1 presents the result of the analysis of institutional frameworks for water environmental management in each country.

Untreated waste water is a health hazard. Nonetheless, it should be considered a resource. Unless it is recycled and re-used, it will be impossible to provide all people in the cities of developing countries with safe drinking water. The example of India shows that agglomerations cannot get ever more fresh water from ever farther away.

KOCHI: Though Kochi Corporation is spending crores to quench the thirst of various divisions under its limit, a majority of areas are still reeling under potable water crisis.

In West Kochi, divisions including Edakochi, Thazhappu, Fort Kochi, Kalvathy, Iraveli, Karipalam, Mattanchery and Cheralai are worst hit.

Erode Corporation has completed preparation of a detailed project report for its ambitious Uratchikottai Water Supply scheme with the cost estimated to be Rs. 407 crore.

The civic body will implement the scheme with funds from Tamil Nadu Urban Infrastructure Financial Services Limited (TNUIFSL) with assistance from German Development Bank (KfW).

CSE under its South Asia Programme organized the second batch of training programme on ‘Decentralised Wastewater Treatment and Reuse’ from 3-6 March, 2012 in partnership with Water Aid Bangladesh.

Due to closure of one treatment plant for maintenance and less release of water from Haryana

Water supply in large parts of the national Capital has been affected because of a dip in the supply from two of the city's water treatment plants.

The Delhi Jal Board has complained that water supply at the Wazirabad and Chandrawal treatment plants has been affected by more than 10 per cent due to less raw water being released by the Haryana administration.