Water/Wastewater

  • Water purification turns wastewater into drinking water
    New wastewater system creates pure drinking water

Water purification turns wastewater into drinking water

May 07 2013 Read 4359 Times

The North City Water Reclamation Plant in San Diego, US, may have found a way to make wastewater and sewer water drinkable. A two-year study has been looking into ways to purify wastewater enough so that it can be used as drinking water, meaning less water has to come from natural resources.

The City Council voted to take the purification process forward and work towards turning 15 million gallons of wastewater into drinking water, every day. The idea was previously termed 'toilet to tap' and was not popular with the majority of people living in the city. However with recent results showing just how pure the water becomes, 73 per cent of people living in San Diego are now in support of the process going ahead.

The water that is produced has been proven to be purer than the drinking water the city is currently using. Nine thousand individual tests into the water quality show that it upholds all of the federal and state drinking water standards. Once the water has been treated it contains lower levels of dissolved salts and organic contaminants than water being sourced from aqueducts or the current drinking water.

The process has several different levels, ensuring that the water is entirely safe for consumption once it has gone through the final stage. It begins with microfiltration, which uses plastic tubes that have hollow membranes inside. The microscopic pores on their surfaces filter microbes and other contaminants. The water then goes through the process of reverse-osmosis. This is the high pressure filtering designed to remove salts and other solid matter. About 80 per cent of water ends up becoming filtered.

If plans are to be approved a purification plant and pipeline is set to be built. It is estimated that the building work will cost around $369 million (£240 million). The pipelines will transport purified water.

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment




Digital Edition

International Environmental Technology June 2019

June 2019

In This Edition Business News - Gasmet Technologies acquires MonitoringSystems GmbH - Royal sponsorship for World Soil Museum - CDS Analytical acquires the rights to Empore™ products G...

View all digital editions

Events

DXC 2019

Aug 05 2019 Lombard, IL, USA

APBE 2019

Aug 16 2019 Guangzhou, China

World Water Week 2019

Aug 25 2019 Stockholm, Sweden

Sensor China

Sep 02 2019 Shanghai, China

Aquatech Mexico

Sep 03 2019 Mexico City, Mexico

View all events