Water and Sanitation An Innovative New Approach

PROVIDENT WATER ENERGY

Energy efficient waste water facilities

ELECTRO-

COAGULATION

ARSENIC

REMEDIATION

About 140 million people worldwide

are exposed to toxic concentrations of

naturally occurring arsenic in

groundwater supplies, the vast

majority living in rural areas

The slow accumulation of arsenic in

the body causes skin lesions, gangrene,

multiple types of cancer,

cardiovascular diseases, reduced IQ in

children, neuropathy and premature

death.

PROJECT BACKGROUND:

The Issue:

Arsenic contamination in groundwater

About 140 million people worldwide affected

Concentrations can exceed WHO standards by up

to 100 times

Arsenic poisoning can be painful, socially

ostracizing, or fatal

Arsenic is tasteless, colorless, odorless and has no

immediate effects

“Technological graveyard” situation: currently

available technologies are either inefficient,

unaffordable, or not culturally adapted

Our Motivation:

Improve health and livelihood of

millions worldwide

Emphasize a sustainable and

appropriate technological solution

The Need:

Efficiency: Prevent prolonged contact

with arsenic in drinking water

Acceptability: Ensure financial, time

and social burdens are socially

acceptable

The Technology:

Low Cost Electro‐Coagulation

Known wastewater technology, yet never

applied to drinking water

Series of 3 distinct processes:

1. Dosing: Formation of Arsenic‐Binding

Corrosion Products (ABCP) through

electrochemical dissolution of iron

electrodes

2. Mixing: Coagulation of ABCP with

arsenic

3. Filtration: Mechanical removal of the

arsenic‐ laden ABCP

The System:

Community‐Based Center with

Full Cost Recovery

Sustainable with renewable

power

( solar/micro wind mill)

Encourages local participation

Scalable and replicable

Provide energy from solar/micro wind

mill in off‐grid rural communities

efficient, robust, and simple

flow‐reactor

Adapt to local culture

Presenting

Plasma Electro-Oxidation Plasma Electro-oxidation is a unique and latest technology successfully

implemented in various countries. Advantages are:

No addition of chemicals for coagulant

Very low operating cost

Less requirement of space and civil work

Kills Bacteria and coliform

Removal of Heavy metals

Simple, easy to operate and maintain

Advantages of the proposed

treatment scheme:

Low operating cost

Very small Footprint

Low emission of CO2 and Methane.

Can handle any Shock loads, no failures due to shock loads

The process itself is disinfecting the bacteria and

thus reduces the Coliform and E-Coli extensively.

Plasma Electro-Oxidation It is one of most powerful commercially available oxidants &

disinfectant for water treatment. Compared to Chlorine, the most

common water disinfection chemical, it is more than 50% stronger

oxidizer and acts over 3000 times faster. In addition to its capabilities,

it is an environmentally friendly method of treatment without creating

harmful by products or significant residues.

Plasma Electro-Oxidation

Features:

100% Chemical free

No Eye & Skin Irritation

Strongest in disinfection

Removes odors, colors & Toxins

Oxides metal and organic matter

No harmful by products

No negative impact

Huge electricity savings

Simple, easy to operate and maintain

Distinct Advantages:

Low Capital cost

Less foot print and land requirement

Low Carbon Foot print

No Odor Problems

Solar powered plants could be made

Plants can be installed any where

Disinfection in ECO- friendly way, No chlorine is used

Crystal Clear and safe drinking water

Simple, easy to operate and maintain

Plasma Electro-Oxidation

Plasma Electro-Oxidation Pilot Trials:

Plasma Electro-Oxidation Pilot Trials:

Plasma Electro-Oxidation Results in 60 Seconds treatment:

Plasma Electro-Oxidation 3MLD WTP based on Plasma Electro-Oxidation Technology with SOLAR POWER:

Drinking Water disinfection

Drinking water Treatment

Drinking water Treatment

Drinking water Treatment

Ozone with Filtration

techniques is the best

solution for Arsenic

Removal.

We are developing a

innovative product

without use of Electric

power to provide safe

drinking water free from

Arsenic.

Based on Hand pumping

and Solar power, this will

be a green Pump and

could save thousands of

lives.