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Environmental Information System Centre(ENVIS)

TECHNOLOGIES

Title	Arsenic Estimation Field Kit
Classification	Process development
Year of Development	2000
No.of Licenses	1
Remarks	Useful for rapid on-site screening of water sources for arsenic levels, free from occupational hazards, precise and accurate

Title	Electrolytic defluoridation process
Classification	Process development
Year of Development	2001
No.of Licenses	-
Remarks	Simple and most efficient process for defluoridation of water using the in-situ generation of poly hydroxy aluminium species by passing Direct Current (DC) through aluminium plates

Title	Hand pump attachable Iron Removal Plant
Classification	Process development
Year of Development	1988
No.of Licenses	-
Remarks	Based on contact bed aeration system Continuous operation (1 cu m/hour ) Suitable for 250 population

Title	Slow Sand Filtration
Classification	Process improvements
Year of Development	1984
No.of Licenses	-
Remarks	Most efficient and reliable single step surface water treatment method for rural water supplies and even for municipal water supplies

Title	“NEERI-Zar” Portable Instant Water Filter
Classification	Process development
Year of Development	2006
No.of Licenses	-
Remarks	Disaster management tool for drinking water supply under flood affected situations Most reliable water purification system without use of electric power for water supply particularly under emergency situation with a wide range of flood water quality

Title	Water filter for removal of organochlorine pesticides from water
Classification	Process improvement; Device
Year of Development	1995
No.of Licenses	-
Remarks	Refill type pesticide removal unit attachable to consumer�s tap Removes commonly encountered pesticides in drinking water at concentrations below 5 m g/L Not yet commercialized

Title	Flyash based zeolites
Classification	Process development
Year of Development	1997
No.of Licenses	-
Remarks	Successfully proven at laboratory scale, maximum single batch produced of 200-300 g Possible applications in the area of soil remediation, CO2 sequestrationare being explored

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