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Purall Introduction

Automatic Water Purification

Purall

Purall – Online, Non-electric & Automatic Water Purification Solutions for hand
pumps and piped water supplies.

Purall Water Purification Solutions

Brief Information:

Purall Water Purification Solutions – To improve the present water purification scenario

  • Organic stable compound
  • Generates Hypochlorous Acid only when dissolved and disintegrated in water
  • Purall is an online water purification device which works on a simple chemical-based technology
  • It has an online Chlorine CPU with replaceable water purification cartridges, for continuous operation.
  • Uses chemical approved and certified to NSF/ ANSI 60 standard for drinking water
  • It is low-cost, non-electrical, and requires minimal maintenance

Present Scenario of Water Chlorination in India

  • Most of the rural water treatment solutions in India are conventional which require continuous human intervention and lack consistency.
  • Sampling of drinking water sources shows that large numbers of water sources are contaminated and cause health hazards.
  • Reasons for contamination range from irregular chlorination by village gram panchayats, punctured pipelines, and improper functioning of water chlorination systems.
  • There is no plausible solution for hand pump water purification.
  • The accuracy of the chlorine level dosing is seldom monitored.
  • Thus, there is either under-dosing or over-dosing of chlorine leading to various consequences.
Purall Water Chlorination
Limitations of Existing Chlorination Options

Limitations of Existing Chlorination Options

  • Need daily Preparation
  • Need continuous human intervention
  • Energy intensive
  • Need proper maintenance and operation
  • Some solutions need High capital costs

Imperative: There is a need for an inexpensive, low maintenance device that provides safe water to communities at affordable costs for rural, small habitations and other small communities, especially for water systems where safety and security are particularly important considerations.

Besides this, water also might require filtration especially in monsoon. However, the filters installed in rural areas are not maintained properly (no regular back wash etc) and they very often get choked quickly and affect both water flow and disinfection.

Features of PurAll Water Purification Solutions

  • Based on cartridges which can be changed easily on exhaustion
  • Completely soluble in water and no traces left
  • Safe and an appropriate technology instrument
  • Capable of delivering a constant and appropriate dose of chlorine to
    control disease-causing organisms in small community water systems
  • Stand Alone device for disinfecting drinking water
  • Online, Non-Electric and Automatic

Models and Areas of Applications.

There are various models of PurAll – PurAll 50, PurAll 50+, PurAll 50H and PurAll 100, suitable for piped water supply schemes and hand pumps. All the models come with an end-of-life indicator, which indicates the time to replace the cartridge.

How Purall Works

How PurAll Works

How PurAll Works

Schematic of installation of purall model for piped water supply schemes.

It is recommended that PurAll device be connected to the main raw water supply line as per Fig 1above. Only in rare case, if installation as per Fig 1 above is not possible, then PurAll be installed as per Fig 2 above. The valves used should be of the type that will not restrict the flow very much, such as ball valves or gate valves. During operation it will be necessary to take samples downstream of PurAll to check the chlorine residual. The sample must be drawn after the chlorinated flow has merged with the bypassed flow. A sample tap might be installed for this purpose.

In operation, the water flows by gravity through the bypass line (Fig 1) or in a pressurized bypass line (Fig2) through PurAll. In this arrangement adequately chlorinated water is mixed in raw water to have desired free chlorine The dose should remain relatively constant regardless of the rate of flow.

The chlorine dose so adjusted should be sufficient to satisfy the chlorine demand and provide a residual level in the distribution system. If PurAll adds more chlorine to the water than is needed for these purposes, the chlorine dose can be controlled by the amount of water bypassing PurAll. To increase or decrease the dose the bypass valve may be adjusted to divert more or less water through PurAll. During operation the bypass valve will normally be partially or completely closed for flow control and the isolation valve will be partially or wide open. The valves once adjusted are seldom required to be changed for a site, unless there is a marked change in raw water parameters- viz flow rate.

Maintenance

Brief Information:

Maintenance

  • The rate of chemical consumption will vary according to flow rate and the chlorine demand of the Water
  • It is advised that the cartridge should not be exposed to air for long time. Cartridge should not be kept submerged / soaked in water for long time. The cartridge shall be needed to be replaced once the chemical inside is consumed; which shall be determined by the chlorine demand and water consumption
  • After usage of the cartridge for the desired literage of water, a new cartridge needs to be inserted
  • This is an easy operation and can be done by any unskilled operator
  • The material used for the cartridges is recyclable plastic or can be disposed in an eco-friendly way

Installation Guidelines

  • First, it must be determined whether the candidate system is appropriate for the installation of a PurAll
  • A device for measurement of chlorine residual should be available in each community that is installing a PurAll Water Purifying device. The correct chlorine dosage is determined by measuring residual chlorine in the water. It is most effective to measure the chlorine residual at PurAll and at one or two points of use in the distribution system. A simple and inexpensive color comparator is a convenient method of measuring chlorine and is recommended for this purpose. Allowable residual chlorine content in water recommended by WHO is min 0.2 mg/liter
  • The candidate water system should have an enclosed water source and an enclosed delivery system. PurAll is designed for use in enclosed systems with a minimal amount of organic matter present. If an open source and / or open delivery system are used, the water may contain excessive amounts of impurities that may make treatment by simple chlorination ineffective
  • Open contaminated sources may require pretreatment
  • PurAll should be installed at a location accessible for maintenance and monitoring purposes
  • Reservoir: The tank at which PurAll is to be installed should have the following characteristics. The influent pipe (where PurAll will be installed) should enter the tank above the high water level. A hatch for maintenance is recommended. The tank should be in an accessible location
Installation Guidelines

Models and Application Areas

Sr No. Models Applications Remarks
1 PurAll 50+
PurAll 50+		 Water disinfections for  larger communities. One cartridge suitable for treating around
3,00,000 liters of water, at 1 ppm dosage*..		 Very useful for larger communities or food joints where
water consumption per day is higher.
2 PurAll 50
PurAll 50		 Water disinfections for communities like schools poultry. One cartridge suitable for treating around 1,25,000
liters of water, at 1 ppm dosage*		 Very useful for small communities like schools or poultries where daily water consumption is low but essential to be purified.
3 PurAll Mini
PurAll 50H		 Hand pump water purification One cartridge suitable for treating around 1,25,000 liters of water, at 1 ppm
dosage*.		 Today, there is no plausible online water purification solution for hand pumps. PurAll 50H is a device that purifies water online at every stroke of the hand pump, even if operated by a small child.
4 PurAll Ultra
PurAll 100		 Water purification for village water supply through ESR or GSR. Cartridge suitable around 25,00,000 liters of
water, at 1 ppm dosage*.		 Provides online, automatic non- electric water purification before water enters the Elevated service reservoirs or ground reservoirs and solar water supply schemes. * Under Standard Operating Conditions.

Installation Credentials

State/Area Details Implemented By
Uttarakhand PurAll solutions for online water purification–gravity Schemes. Uttarakhand Jal Sansthan
Odisha PurAll solutions for government schools. Save the Children.
Madhya Pradesh PurAll solutions for Hand Pumps. Public Health Engineering.
Maharashtra Chandrapur PurAll solutions for Hand Pumps. Zilla Parishad, Chandrapur.
Maharashtra Parbhani PurAll solutions for Hand Pumps. Zilla Parishad, Parbhani.
Maharashtra Gadchiroli PurAll solutions for piped water supply. Zilla Parishad, Gadchiroli
J&K, Odisha, Philippines Water purification schemes during flood and cyclone management. Oxfam India, Global Medic.
Jharkhand Piped water Supply schemes World Bank funded Rural Water Supply and Sanitation Project.
Tamil Nadu Piped Water supply schemes. District Rural Development Department, Panchayat Raj.
Exports – Kenya, South Sudan, Sierra Leone, Liberia, PurAll solutions for Hand Pumps. Distributors and International NGOs.
Goa PurAll purification for Dual Solar water pumping schemes. Public Works Department.
West Bengal Along with arsenic removal plants. Bengal Aqua Engineering.
All India (Food Outlets) PurAll water purification Yum Restaurants (Pizza Hut). McDonalds, Burger King, Dominos, SubWay.

Approvals and Registrations

Empaneled by Maharashtra State Water Supply and Sanitation Department (WSSD).

The Chemical used in PurAll Water Purification Systems (Cartridges) is approved and certified to NSF/ANSI 60 standard for drinking water.

Tested at State Health Laboratories in Madhya Pradesh, Maharashtra, Tamil Nadu.

Recommended by
R. Mashelkar Technical Committee, Ministry of Drinking Water& Sanitation, Government of India.

Driven by a team of young, enterprising minds, EaSol has expanded its footprint across diverse regions in India and globally.

Office Address

206, 2nd Floor, Brahma Corp. Vantage Towers, Bhavdhan - Pashan main Road, Pune 411 021

Work Address

Gat No. 100/1, Khatpewadi Road, Bhukum, Taluka Mulshi, Pune-412115, Maharashtra, India

Mail

info@easol.in

Phone No.

+91 9881933000
+91 20 25280200

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