Featured Research

from universities, journals, and other organizations

Filtering kitchen wastewater for plants

Date:
January 6, 2011
Source:
Inderscience Publishers
Summary:
Water is a precious commodity, so finding ways to re-use waste water, especially in arid regions is essential to sustainability. Researchers in India have now carried out a study of various waste-water filtration systems for kitchen wastewater and found that even the most poorly performing can produce water clean enough for horticultural or agricultural use.

Water is a precious commodity, so finding ways to re-use waste water, especially in arid regions is essential to sustainability. Researchers in India have now carried out a study of various waste water filtration systems for kitchen waste water and found that even the most poorly performing can produce water clean enough for horticultural or agricultural use.

Related Articles


They report details in the International Journal of Environmental Technology and Management.

Recycling domestic wastewater is becoming an important part of water management and emerging technology and a shift in attitude to waste in the developing world means that more people would be willing to re-use this so-called gray water given the choice. Unfortunately, affordable and effective domestic wastewater treatment is not yet available particularly in parts of the world where financial and technical constraints are acute. Nevertheless domestic wastewater from showers, kitchen sinks and laundry washing in homes and offices offers a potential resource that differs from industrial wastewater. Domestic waste water might contain an organic load from food processing, utensil washing in the kitchen, soap and detergents, with the main contaminants being proteins, carbohydrates, detergents, oil and grease and other dissolved and suspended compounds.

Subrata Dasgupta of the Council of Scientific and Industrial Research, in Kolkata, and colleagues have explored the potential of ceramic microfiltration membrane s used alone or in conjunction with different physicochemical treatments, such as biotreatment and adsorption, for cleaning up dirty dishwater. The team compared cross-flow microfiltration (CMF) with tubular ceramic membranes in single channel and multichannel configurations. Biotreatment involved using activated sludge or an adsorptive treatment based on the prepared dried roots of Eichhornia crassipes, an aquatic weed that grows well in polluted water.

The researchers found that, as one might expect, a 19-channel ceramic membrane performed better in terms of permeate quality than a single-channel filter. In terms of BOD (biological oxygen demand), COD (chemical oxygen demand), turbidity, TSS (total suspended solids), microfiltration of the waste water treated with adsorbent appeared to be most promising compared with other the approaches tested. In that approach, 98% removal of BOD and 99% removal of COD were seen. The quality of the treated water was found to be fit for use in horticulture and irrigation, the team concludes.


Story Source:

The above story is based on materials provided by Inderscience Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Subrata Dasgupta et al. Comparative study on treatment of kitchen-sink wastewater using single and multichannel ceramic membrane. Int. J. Environmental Technology and Management, 2010; 13: 336-347

Cite This Page:

Inderscience Publishers. "Filtering kitchen wastewater for plants." ScienceDaily. ScienceDaily, 6 January 2011. <www.sciencedaily.com/releases/2011/01/110105094119.htm>.
Inderscience Publishers. (2011, January 6). Filtering kitchen wastewater for plants. ScienceDaily. Retrieved March 30, 2015 from www.sciencedaily.com/releases/2011/01/110105094119.htm
Inderscience Publishers. "Filtering kitchen wastewater for plants." ScienceDaily. www.sciencedaily.com/releases/2011/01/110105094119.htm (accessed March 30, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Monday, March 30, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

You Won't Be Driving Tesla's Mystery Product

You Won't Be Driving Tesla's Mystery Product

Newsy (Mar. 30, 2015) — Tesla CEO Elon Musk announced a new product line will debut April 30, but it&apos;s not a car. Video provided by Newsy
Powered by NewsLook.com
Solar Impulse Departs Myanmar for China

Solar Impulse Departs Myanmar for China

AFP (Mar. 30, 2015) — Solar Impulse 2 takes off from Myanmar&apos;s second biggest city of Mandalay and heads for China&apos;s Chongqing, the fifth flight of a landmark journey to circumnavigate the globe powered solely by the sun. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Colombian Project Transforms Old Tires Into Green Housing

Colombian Project Transforms Old Tires Into Green Housing

AFP (Mar. 30, 2015) — To put a roof over their heads and help the environment, residents near Bogota are building houses out of recycled bottles and old tires. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
The Future Of Japanese Whaling: Heritage Vs. Conservation

The Future Of Japanese Whaling: Heritage Vs. Conservation

Newsy (Mar. 30, 2015) — In 2014, the International Court of Justice ruled Japan could no longer engage in whaling in the Antarctic, but Japan has plans to return this year. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins