1. Welcome 

2. Solar Powered Oligodynamic Disinfection Equipment Solar Powered Oligodynamic Disinfection Equipment by M/s.Sre Senthil Engineering Company A-12, Coimbatore Private Industrial Estate, Coimbatore – 641021.

4. Oligodynamic Disinfection Equipments

5. INTRODUCTION Water -- a necessity for life, is a rare commodity, which ought to be utilized wisely and safely. We make great efforts in providing drinking water to one and all in our country. The government spends crores and crores of rupees for providing protected drinking water to every one in the rural and urban areas.

6. THE NEED WATER-tapped from rivers, ponds, wells and bore wells may be contaminated and have invisible micro-organisms like Coli-bacteria and E- Coli bacteria, which cause the most of the diseases in India. So just providing drinking water by digging bore wells and fixing pump sets and laying pipe lines don’t solve the whole problem of providing safe and protected drinking water. Atleast a small percentage of the total outlay for providing drinking water has to be spend for disinfection of water. All water borne diseases can be totally controlled by properly disinfecting the drinking water.

7. SILVER IONIZATION Silver Ions Ag2+ are produced from pure Silver Electrodes by passing a calculated amount of current. This is produced according to the setup in the control panel, which in turn is as per actual flow. Concentrated solution of Silver ions in water is produced in the water chamber and is made to mix with the flow of water in the pumping main and then in turn we get the required concentration.

8. HISTORY OF SILVER The Egyptians kept their water in silver containers to prevent contamination. The ancient Greeks were the first to discover the sanitizing power of copper. The early American pioneers put silver coins in large wooden water casks to provide them with safe drinking water on their long voyage.

9. During the plague-ridden middle ages, mothers knew that to place a silver spoon in an infant’s mouth was a way of warding off disease. Silver has been used as an Ayurvedic Medicine in India for well over 2500 years. It was NASA that harnessed what nature already knew and designed an ionization system for their Apollo flights.

10. HOW IT WORKS? Silver ions produced in our system is positively charged and most of the micro organisms are negatively charged. There is an attraction among the silver ions and the micro organisms. The silver ions disable the enzymes that micro organisms depend on to breathe and thus kills them. Silver is effective because of its capabilities of interfering with DNA production and accelerating the death phase of bacteria and viruses. Because of the charge in the ions they repel each other and are always in suspension. As their size is small they have a large surface area of silver per unit volume of silver. This small size with its large surface area to volume ratio enables the surface chemistry of silver.

11. Electrode Chamber

12. SOLAR PUMP DISINFECTION EQUIPMENT INSTALLATION DRAWING

13. Characteristics of a good Disinfection Equipment for Solar Pumps  Has to work on Solar Power.  As the Water quality is per IS 10500 standards, there should be little residual disinfectant to protect water from secondary contamination in tanks or pipeline or at household pots etc.  Disinfectant must not produce Disinfection by products.  The equipment should not require any salt or chemicals for disinfection or regeneration.

14.  Operating cost must be nil for at least 5 years, when operating for 4-5 hrs/ daily.  There should not be any corrosion to the pumps or pipes.  No operator assistance must be required.Should work only when pump operates.  Should be trouble free i.e. No moving parts and no corrosive parts.

15. Unique features of Senco disinfection   Powered by Solar.   Consumes current in mille amps only. (Negligible)   Disinfection equipment is controlled by the level controller.   Disinfects all pathogens and produces water as per IS 10500 standards.

16.  No disinfection by products are formed.  No salt or chemicals required.  Electrodes can last for 3 years to 5 years.  No operator assistance required.  Good residual effect, hence protects water from secondary contamination.

17. DOUBTS ABOUT SILVER Our equipment discharges infinitesimal quantity of silver ions,(0.01 mg/lit to 0.03 mg/lit) and not molecular silver. World Health Organization (WHO) has suggested a maximum limit of silver that may be consumed by a human being is 10gms. -Ref: “Guidelines for drinking water quality” -2nd edition vol.l.P.No. :54 by WHO. Permissible limit is 100 ppb (micro grams/lit for drinking water as per EPA and 90 ppb(micro grams/lit) as per European Union Standard. (Contd.,)

18. In the whole life time of 70 years, considering one consumes 2 lts/day for all 365 days, he consumes only 0.5gms. this is 20 times well with in the limits of WHO. Retention rate of silver in human and laboratory animals range between 0 and 10% as their ionic size is so small.

19. We kindly request you to use the latest technology of “ Solar Powered Oligodynamic Disinfection Equipment ” in all your water supply projects and provide bacteria free drinking water