Browse all Channels
IWA Publishing
Alliance House, 12 Caxton Street ,
London ,
United Kingdom SW1H 0QS
United Kingdom
  4. Decentralized wastewater treatment systems for a college, ...

Decentralized wastewater treatment systems for a college, village, and primary school BORDA-LIRE DEWATS Projects in Laos

0
- By:

Courtesy of IWA Publishing

The Bremen Overseas Research and Development Agency (BORDA) has a mission to improve the living conditions of disadvantaged communities and to preserve the environment through decentralized sanitation projects. As part of this mission, the Agency has developed modular, decentralized, and cost-effective wastewater treatment service packages that they have termed ‘DEWATS’ – decentralized wastewater treatment systems, which, with the help of funding agencies, are being installed throughout Asia and Africa.
The Lao People’s Democratic Republic is a country surrounded by China, Vietnam, Thailand, Cambodia and Myanmar. In 2005, Lao PDR was below average in establishing sanitation access as compared to other Southeast Asian countries. In a study conducted by a Multiple Indicator Cluster Survey in 2006 (MICS III), it reflected a 44.8% coverage for those with improved sanitation (or 48% cited by the UNICEF/WHO Joint Monitoring Program) as compared to the 67% average for all the Southeast Asian countries. In the same study, there are at least fifty-two percent (52%) of the Lao population without access to sanitation. This data equates to over three million Laotians living without improved sanitation - without an easily accessible, private and safe place to urinate and defecate. Furthermore, the growing population of Lao PDR needs to be taken into consideration while looking at the efforts to increase sanitation coverage.

Continue reading the full article

Related articles

  • Greyline provides end-to-end solution for wastewater treatment plant - Case Study

    Wastewater treatment is a vitally important process. Just ask The Township of Edwardsburgh/Cardinal’s Assistant Chief Water and Sewer Operator, Eric Wemerman. “For a community to keep everyone’s trust, you want to make sure you’re operating a good system.” Eric continues “It’s important for health reasons, when people flush their toilets you need to get that away and be treated so there’s health reasons why we treat everything. And environmental too, because what we...

  • Partially aerated submerged fixed-film bioreactor for simultaneous removal of carbon and nutrients ...

    Influence of aeration rate and COD:N:P (C:N:P) ratio on the performance of an upflow partially aerated submerged fixed film (UP/ASFF) bioreactor for simultaneous carbon and nutrient removal from high-strength nitrogen wastewater was investigated during 6 months. Airflow rates at three levels of 1.5, 3, and 4.5 L/min and C:N:P ratios at four levels of 450:300:10, 450:150:10, 450:100:10, and 450:75:10 were selected as the two main input factors. All experiments were performed at constant chemical oxygen demand...

  • Heavy metal content of Swedish municipal wastewater sludge – status and goals

    In 2014, 25% of the sludge produced at Swedish municipal wastewater treatment plants was applied to agricultural land. Even though the Swedish heavy metal limits for sludge to be used in agriculture are amongst the most stringent in the EU, more stringent heavy metal limits are proposed. Most sludge applied to agricultural land is recycled within a certification system, Revaq. Revaq has targets for control at source management and improvement of sludge quality. Statistics based on data collected within the Revaq...

  • Response surface methodology approach for the optimisation of adsorption of hydrolysed ...

    Wastewater produced from polymer flooding in oil production features high viscosity and chemical oxygen demand because of the residue of high-concentration polymer hydrolysed polyacrylamide (HPAM). In this study, steel slag, a waste from steel manufacturing, was studied as a low-cost adsorbent for HPAM in wastewater. Optimisation of HPAM adsorption by steel slag was performed with a central composite design under response surface methodology (RSM). Results showed that the maximum removal efficiency of 89.31% was...

  • Tailing propensity in the ultraviolet disinfection of trickling filter and activated sludge ...

    In this paper, the effect of suspended flocs on the tailing of ultraviolet (UV) disinfection kinetics of secondary effluents was examined. To achieve this goal, final effluents produced in two processes for treating wastewater; namely, a trickling filter system and an activated sludge system, were collected and their UV disinfection were compared. Tailing of the UV dose response curve was controlled by the fraction of flocs that are both culturable and UV-resistant, referred to as the ‘tailing propensity’. Using...

Customer comments

No comments were found for Decentralized wastewater treatment systems for a college, village, and primary school BORDA-LIRE DEWATS Projects in Laos. Be the first to comment!