Nepal WASH Blog Water, Sanitation and Hygiene (WASH) & Development in Nepal

January 22, 2013

Link of the week – 22 January

Filed under: Advocacy,Drinking water,Rural,Technology — nepalwash @ 9:00 am

सोलार प्रविधिबाट खानेपानी आयोजना सञ्चालन

९ माघ, इलाम । इलामको बाँझो गाविस वडा नम्बर ६ को रक्से बजारमा जिल्लामै पहिलोपटक सोलार पम्पिङबाट खानेपानी आयोजना सञ्चालन भएको छ । अग्लो डाँडामा रहेको रक्से बजारलाई लक्षित गरेर सोलार पम्पिङ सञ्चालन गरिएको हो । यसअघि त्यहाँका बासिन्दालाई करिब पाँच किलोमिटर टाढा रहेको साकफाराबाट ल्याएको पानीले जीवनयापन गर्नुपर्दा ज्यादै समस्या भएको थियो, उपभोक्ता समितिका सदस्य किरण राईले भन्नुभयो ‘सोलारबाट पानी तान्न थालेपछि स्थानीय बासिन्दालाई राहत मिलेको छ ।’

More – Click here for our link of the week – 22 January

March 17, 2011

Link of the week – 17 to 23 March 2011

Filed under: Fog Water,Link of the week,Technology — Anita Pradhan @ 9:00 am

The fog catchers

Sabina BK, a previous resident of Kumaripati, moved to the banks of Nakkhu on the outskirts of the Ring Road to escape the dire lack of water. “Even here, during the summer months, it gets difficult,”, she explains., “Sometimes we wait, sometimes we buy.” City dwellers shifting residence in the search of placating water needs is not something new.

To read more, click here for our link of the week – 17 to 23 March 2011

January 26, 2011

Septic tank with up-flow bio-filter eases life of squatters community in Kathmandu

Filed under: Anita Pradhan's Post,Sanitation,Technology,poverty — Anita Pradhan @ 9:00 am

Till three years ago, life for the squatter community of Narayan Tole with nearly 31 households was dreadful. Situated along the banks of the polluted Samakhusi River, Narayan Tole was one of the most polluted slums of the Capital where the squatters were facing innumerable health and environmental problems. But the squatter’s scenario has changed drastically as the resident of Narayan Tole decided to make their area clean and environment friendly. The polluted river posed health hazards and insecure feeling of potential geographical disaster in the community. There was just one single tap and very few toilets for the entire community. Though elders shared the toilet facilities, children defecated openly and all the waste was discharged directly into the river.

Whoever sees this community today won’t believe that the situation was so bad just three years ago as Narayan Tole has transformed into a clean, eco-friendly squatter community.

The wastewater from toilets are still being discharged into the river but only after it is treated in up flow bio-filter constructed to treat the septic tank effluent. There are two septic tanks in the community with two chambers in each, which are separated by an up flow bio-filter. The filter blocks solid waste in one chamber allowing treated liquid waste into another chamber. The water treated from the filter is then discharged into the river.

Household effluent from the septic tank is treated by the up flow bio-filter. It is a submerged filter with stone media of 6m to 120m deep. Septic tank effluent is introduced to it from the bottom, and the microbial growth is retained on stone media making possible higher loading rates and efficient digestion.

The biochemical oxygen demand (BOD) in the treated water is found to be reduced by 90 percent Mr Kabir Das Rajbhandari, Urban Programme Manager from WaterAid says. When BOD levels are high, dissolved oxygen levels decrease because bacteria consume oxygen that is available in the water. Since less dissolved oxygen is available in the water, it’s difficult for fish and other aquatic organisms to survive.

This technology is highly efficient in areas where available space is limited. Unlike Reed Beds, which require 1m2/person, the septic tank with upflow bio-filter can be constructed in a densely settled urban area. Because the design in fairly low maintenance, it can be managed by the community. Such treatment plants can be installed in individual homes too as they are affordable and occupies only a little space,” Mr Rajbhandari further adds.

The drastic change has come because of the people’s willingness to change. This whole transformation is an attempt of residents from squatter community to urge people to keep environment clean and show others that squatters are not polluters of rivers. The effort of this small squatter community can be a good example for everyone working for the management of urban water and sanitation. Even other slums could learn from them so that they could at least live a healthy and environment-friendly life. The Narayan Tole residents have felt the difference due to the presence of this treatment plant. They feel much relieved now since the foul smell has reduced to a great extent.. With toilets in almost all the homes in this settlement, people no longer defecate in the open.

The water and sanitation project implemented by LUMANTI in nearby squatter community of Kahadipakha inspired them to improve their community’s condition too. Community members approached LUMANTI to help in the community. With financial and technical support from WaterAid and UN-HABITAT, LUMANTI helped to improve the situation of the settlement.

To watch news coverage by Image Channel
Read more…

Written by Anita Pradhan, Documentation Manager, WaterAid in Nepal.

January 10, 2011

Good redundancy

Filed under: Ashu's WASH Mondays,Functionality,Technology,Water,Water resource management — Ashutosh Tiwari @ 11:59 am

Aid projects are often criticized for waste, for creating redundancies and for displacing local efforts.

On a larger scale, this leads to questions such as: if an aid agency helps build a school in a locality, does that displace or minimize the local government’s own efforts to build schools? Likewise, if an agency supplies water to a village through its NGO partner, will that provision then act as a disincentive to the district water supply office or to villagers themselves to do anything on their own when the supply fails?

On a smaller scale, especially in water supply work, when we talk about the functionality of water schemes (meaning: that they work all right), there are often times when it pays off to think ahead to have a few redundancies built into the system.

For instance, say a previously well-functioning public tap starts mal-functioning for a variety of reasons. The revolving head of the tap goes missing or gets broken due to overuse. A screw at the head of the tap slips off: either water stops coming or continues to pour without stopping.

Perhaps the pipes leak: someone slices off a part of the pipe when collecting fodder for cattle, and so on. All these and more pose a problem for the long-term sustainability of water supply schemes in Nepal’s villages.

In such cases, having redundancies built into the system helps. If NGO partners take a few days to train two or more willing villagers on matters such as how to spot potential water supply problems before they occur, show them where they can keep a few spare parts handy and how to make use tools that help replace the parts when necessary, teach them how to procure appropriate pipes and other materials at reasonable rates, then creating this sort of redundancy in the system actually helps with the long life of the water supply systems. In case of water supply failure, the villagers have their own more than one resource to tap into (pun intended!) to get the water flowing.

So next time, when you hear someone criticizing aid agencies for creating redundancies, ask: Are they talking about redundancies that displace local efforts or redundancies that sustain local efforts? In WASH work, we find that it’s often the latter we need more of.

Written by Ashutosh Tiwari, Country Representative, WaterAid in Nepal.

July 7, 2010

Michael Pritchard’s water filter turns filthy water drinkable

Filed under: Technology,Water — Tags: , — Anita Pradhan @ 7:09 pm

Too much of the world lacks access to clean drinking water. Engineer Michael Pritchard did something about it — inventing the portable Lifesaver filter, which can make the most revolting water drinkable in seconds. An amazing demo from TEDGlobal 2009.    Watch the water filter video…

This blog was created by WaterAid under the creative commons licence