Download - BWSSB: World Water Day 2017
WaterWASTE WATER AS A RESOURCE
Rebuilding a water culture
Shubha RamachandranBiome Environmental Trust
Nature Based STPs
● Phytorid/DEWATS : anaerobic baffle reactor + planted gravel filter + polishing pond
● SBT : Soil Bio Technology
DEWATS AT HOME LEVEL
Waste Water Treatment
The product
Ravi Iyer
Home near Agara Lake – Waste Water Reuse
Phytorid
Delhi Jal Board/CSE
SBT : Herohalli, Magadi Road
● 25 acres● 1.5 MLD STP● Sewage mining● SBT● Issues with
electricity and dyes in inlets
SBT: Herohalli, Magadi Road
SEWAGE MINING
Herohalli, Magadi Road
REUSE FOR FLUSHING/GARDENING
REUSE FOR CONSTRUCTION
DISCHARGE INTO LAKES
Jakkur Lake
● 10 MLD design● 8.45 MLD inflow
from Yelahanka and Jakkur
● UASB, EAR● WETLAND● STP open for
viewing
Design Parameters
The plant is designed for the following influent characteristics of wastewater.pH 7.06 – 8.1Total Solids 782-1352 mg/lTSS 320-672 mg/lBOD5, 20°C 290-369 mg/lCOD 465-973 mg/lChlorides (as Cl) 74-151 mg/lSulphates (as SO4) 11-41 mg/l
Design Parameters
The plant is designed for the following characteristics of treated water.BOD5 ≤ 20 mg/lSuspended solids ≤ 30 mg/lpH 5.5 – 9Oil & Grease ≤ 10 mg/lResidual Chlorine ≤ 1 mg/lColour & Odour See NoteIron(as Fe) 3 mg/LNitrate Nitrogen 10 mg/LNote: all efforts are to be made to remove colour and odour as far as practicable
Treatment Plant and Jakkur Lake
Treated Wastewater entering the wet Land System of Jakkur Lake
Nature as further treatment
Lake ecosystem
Fisheries
Sludge as Compost
Groundwater
Community – Jala Poshan
Puttenahalli
● 13 acres● 5-8 MLD from
private STP● Provision for
WETLAND● New Idea/Hope
Puttenahalli
Floating WETLAND
Floating WETLAND
Floating WETLAND
Floating WETLAND
The reuse of treated waste-water
• With a constructed wetland further polishing occurs
• Wetlands become bio-diversity spots
• Eco-system service functions of water fulfilled
• Groundwater recharge allowed
• Fisheries possible
IRRIGATION IN COMMON AREAS
LOWER AMBALIPURA
Kelagina Ambalipura
● 7 acre lake● Surrounded by 4
apartments● Treated water
from STP used for drip irrigation
Kelagina Ambalipura
100% REUSE - TZED
● 95 flats and villas● Waste Water treated
to drinking water standards – and used for all purposes
● ASP + slow sand filter + RO
● 60KLD STP, 40KLD reused
● 1,00,000/- per month for running of STP
● FIRST and ONLY in INDIA
Challenges and Way Forward
● ZLD doable ? - ● can excess treated waste water be used for discharge into lakes, shallow recharge
● If yes, what protocols for monitoring● Community monitoring/responsibility – including fisherman, grass cutters
● Low costs Sensors/meters to check for treated water quality at real time
● Maintenance Costs and Effort/Skill
Biome Environmental Solutions Pvt LtdBIOME Environmental Trust
(Rainwater Club) www.biome-solutions.com
Www.rainwaterclub.org 1022, 1st floor, 6th Block,
HMT Layout, Vidyaranyapura, Bangalore – 560 097,
Phone : 080 41672790
THANK YOU !!