Page 65 - GRIHA Manual Volume IV - Introduction to National Rating System
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56 Griha Manual: Volume 4
7. Fluidized Aerobic Bioreactor (Decentralized)
This system is based on the concept of suspended growth as well as attached growth processes.
The media has a specific gravity less than that of water. Hydraulic currents set by aeration facilitate
fluidization of the media. This technology offers wide treatment range of 25–20 000 m /day and is a
3
totally closed system for small capacities. This technology is ideal for treating the wastewater from
municipalities, hospitals, hotels, commercial complexes, and so on.
8. Additives for treating wastewater
Biosanitizer
Developed by Uday Bhawalkar of the Bhawalkar Ecological Research Institute, Pune, this additive is a
biocatalyst and is for one-time use. Once incorporated in the system, they stay inside the treatment
unit and treat the domestic wastewater from the kitchen, bathroom, and toilets. It is suitable to it in
septic tanks and can be used both for greywater and blackwater.
Effective micro-organisms (EM)
EM denotes a liquid mixture of several micro-organisms in a molasses-based medium and was first
developed in the 1970s by Teruo Higa, Professor of agriculture at Ryukus University in Okinawa,
Japan. This product is being manufactured in India since 2000. One litre of EM stock solution is
enough input for 200 Kl of effluent and sewage. It has been successfully used for treatment of
municipal sewage and industrial effluents. It brings down COD, BOD, SS, and DS values, improves
DO and pH values to neutral.
GRIHA speciic information
Objective
To provide facility for the treatment of wastewater generated in the building so as to have safe
disposal and use of by-products.
20.1 Commitment
20.1.1 Provide necessary treatment of wastewater for achieving the desired concentrations for
disposal/reuse.
20.1.2 Carry out treated wastewater testing for various parameters prescribed in the Pollution
Control Acts, Rules and Notifications, CPCB, 1998, for disposal in surface water and on
land or other reuse applications.
20.2 Compliance
20.2.1 Narrative on the type of treatment system being employed. Drawings with specifications
of the system indicating the capacity of water treated.
20.2.2 Indicate the quantum of treated water generated along with the use/disposal steps.
20.2.3 Provide the characteristics of wastewater and expected characteristics after treatment
from the supplier.
20.2.4 Quality checking frequency and sampling plan of the treatment plant (Table 20.2). The
testing should be done by any accredited NABL laboratory.
20.2.5 Narrative on disposal and reuse of other by-products, such as sludge.
7. Fluidized Aerobic Bioreactor (Decentralized)
This system is based on the concept of suspended growth as well as attached growth processes.
The media has a specific gravity less than that of water. Hydraulic currents set by aeration facilitate
fluidization of the media. This technology offers wide treatment range of 25–20 000 m /day and is a
3
totally closed system for small capacities. This technology is ideal for treating the wastewater from
municipalities, hospitals, hotels, commercial complexes, and so on.
8. Additives for treating wastewater
Biosanitizer
Developed by Uday Bhawalkar of the Bhawalkar Ecological Research Institute, Pune, this additive is a
biocatalyst and is for one-time use. Once incorporated in the system, they stay inside the treatment
unit and treat the domestic wastewater from the kitchen, bathroom, and toilets. It is suitable to it in
septic tanks and can be used both for greywater and blackwater.
Effective micro-organisms (EM)
EM denotes a liquid mixture of several micro-organisms in a molasses-based medium and was first
developed in the 1970s by Teruo Higa, Professor of agriculture at Ryukus University in Okinawa,
Japan. This product is being manufactured in India since 2000. One litre of EM stock solution is
enough input for 200 Kl of effluent and sewage. It has been successfully used for treatment of
municipal sewage and industrial effluents. It brings down COD, BOD, SS, and DS values, improves
DO and pH values to neutral.
GRIHA speciic information
Objective
To provide facility for the treatment of wastewater generated in the building so as to have safe
disposal and use of by-products.
20.1 Commitment
20.1.1 Provide necessary treatment of wastewater for achieving the desired concentrations for
disposal/reuse.
20.1.2 Carry out treated wastewater testing for various parameters prescribed in the Pollution
Control Acts, Rules and Notifications, CPCB, 1998, for disposal in surface water and on
land or other reuse applications.
20.2 Compliance
20.2.1 Narrative on the type of treatment system being employed. Drawings with specifications
of the system indicating the capacity of water treated.
20.2.2 Indicate the quantum of treated water generated along with the use/disposal steps.
20.2.3 Provide the characteristics of wastewater and expected characteristics after treatment
from the supplier.
20.2.4 Quality checking frequency and sampling plan of the treatment plant (Table 20.2). The
testing should be done by any accredited NABL laboratory.
20.2.5 Narrative on disposal and reuse of other by-products, such as sludge.
