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Wastewater Treatment

All types of wastewater can be treated including wastewater coming out of household toilets, industry, hospital, hotels.

The treated wastewater from the water closet can be used for aquaculture. While all the other treated wastewater can be used for landscape and agriculture / irrigation purpose.

Wastewater due to its nature is not advised for drinking purposes. Though the chemical content and other contamination are treated it is still not advised to use the treated water for drinking purpose.

Treatment of Wastewater gives us a better use of it (recycle and reuse) before we allow it to go to drain. It also adds a social value and promotes clean environment and surrounding as the treated water can be allowed to recharge into the ground.

Greywater Recycling

Greywater is wastewater generated from bathroom sinks, showers, bathtubs, and washing machines. The amount of oil and grease used in South Asian kitchens makes kitchen water considered blackwater.

Though there are technologies available to make the greywater drinkable, we have not yet adopted such methodologies, keeping in mind the water coming out of the kitchen in our subcontinent has high amount of grease.

The treated greywater can be used for flushing of the toilets, cleaning and washing of the car, cleaning of the floor, landscaping and agriculture purpose.

Recycled greywater can help meet up to 30% of your water demand. Greywater as mentioned above can be used in toilets and cleaning purposes and the fresh water then can be utilized for cooking, drinking, bathing, etc.

Tripti Filter

Tripti water filter is a simple and portable filter made from the Silver Nano Technology (Colloidal Silver) with distinctive 4 levels of filtration. This is a simple water filtration process which can easily be made point of use with no boiling required saving cost and time.

One candle filters between 3-5litres per hour, which highly depends on quality of water.

The prefilter helps to clean water especially removing turbidity.The Ceramic has small pores not more than 0.5 micron (0.0005 mm) that helps to filter particles such as cysts, parasites, fungi and other microorganism. The silver is impregnated with nano-silver particles that inactivate bacteria and other microorganisms. It is like bacteria killer. Activated carbon reduces level of harmful (organic) chemicals material in the water such as pesticides and chlorine. In this way, it improves the taste of water.

No, boiling water is not required as Tripti candles are made of silvernano technology which helps to remove the harmful bacteria and parasites present in water. So you can enjoy clean cold water without having to wait.

One Tripti candle can filter around 7000litres of water.

The filter candle needs to be cleaned at least once every two weeks. In order to clean the filter candle use a scrub pad provided. Do not use detergent, soap, or any other chemicals. Simply scrub the filter with a scrub pad.

The filter is provided with a plastic end of life indicator when the end of life indicator fits around the thinnest part of the filter, the filter is no longer able to make the water safe and need to be replaced.

The water may smell during your first use of filter. Although not dangerous to drink, you should not drink the first 15 litres of filtered water due to the odd taste.

It turns brown because the dirt in your water is filtered out. This is an indication that your filter works. If your filter turns green, your filter is probably located in a place to close to a window. We recommend placing your filter in a place that does not get direct or indirect sunlight.

The filter can easily be replaced at SmartPaani office, Pulchowk, Lalitpur.

Tripti filters rainwater and tap water effectively however for well water it filters depending upon the level of contaminants present in the water.

Yes, you can use our candle only for your conventional filter. Our candle can easily fit and placed in your normal steel filters.

Rainwater Harvesting

Rainwater Harvesting is the collection and utilization of the rain that falls on rooftops and other surfaces for immediate and future use. This is done either by using storage tanks or recharging the rainwater into underground sources such as wells. SmartPaani Team creates customized solutions based on specific needs and space availability.
Solutions range from tank-based storage for all uses during the rainy season, groundwater recharge for year-round water supply, or tank storage for year-round drinking and cooking uses.

No. Rainwater is pure. Rooftops are dirty, but filters can easily remove contaminants. We have installed systems where people use ONLY rainwater for drinking year round. Simple filtration or chlorination can make rainwater fit for drinking.

No. In fact it can be very economical. It is a one time investment and we estimate that more than 20% of the population in Kathmandu would benefit more from harvesting their own rainwater than putting in other high return investments. Some clients have been able to recover the invested amount in a year.

Three reasons:
1. This is not always the case and becoming increasingly less so. The current demand for water is 320 Million Liters Per Day while the supply is only 120 Million Liters a Day in the Monsoon. In 2002 the demand was 140 Million Liters a Day; every day the water situation becomes worse for somebody even in the monsoon, tomorrow that person could be you. More than 15% of Kathmandu’s population purchases tankers of water year round, meaning they spend more than 30,000 rupees a year on water.

2. Convenience; More than half of the people have to get up between 12 and 6 a.m. to deal with water, even during the monsoon. If you use the storage tank in your house to collect rainwater this inconvenience is avoided. Additionally the occasional urban flooding that affect municipal supply, especially during the monsoon, will no longer be a problem during this time.

3. Groundwater – Most people we talked to used to have abundant water in their tube wells 15 years ago, but do not today. Why? Over pumping – No. The main problem is that the rain that used to go into the groundwater is now sent to the sewer. More rainwater inside the Ring Road is sent to the sewer than the much-hyped Melamchi will provide in a year. 15 years ago this figure was half. Before this water used to percolate into the ground and much of it remained for dry season consumption, this is no longer the case. SmartPaani can work with you to begin to help recharging this “wasted” rainwater into your well.

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