Lok Sabha Question No. 2697 (UNSTARRED), answered on 2021-08-04
Subject: Bio-toilets by DRDO
Ministry: DEFENCE
Asked by: Ganesh Singh

## GOVERNMENT OF INDIA MINISTRY OF DEFENCE DEFENCE RESEARCH & DEVELOPMENT ORGANISATION

## LOK SABHA UNSTARRED QUESTION NO.2697

TO BE ANSWERED ON 4 th  August, 2021

## BIO-TOILETS BY DRDO

## 2697. SHRI GANESH SINGH:

Will the Minister of DEFENCE j{kk ea=h be pleased to state:

- (a) the main features of bio-toilets developed by the Defence Research and Development Organisaton(DRDO);
- (b) whether the DRDO is using cowdung in the said bio-toilets;
- (c) if so, the details thereof; and
- (d) the number of bio-toilets constructed so far, State-wise including district Satna along with the number of people benefited so far?

## A    N    S    W    E    R

MINISTER OF STATE IN THE MINISTRY OF DEFENCE

(SHRI AJAY BHATT)

- (a)  The  major  features  of  bio-toilet  developed  by  Defence  Research  and  Development Organisation (DRDO) are as under:
- (i) It makes use of an anaerobic (without oxygen) process through which the human waste is digested by a consortium of bacteria
- (ii) Bio-toilet has been customized and different designs have been developed for use under different geo-climatic conditions.
- (b)  &  (c):    Yes,  Sir.    The  Cow  dung  is  used  for  the  enrichment  bacterial  consortium. Following four types of bacteria are present in the consortium:

- (i) Hydrolase
- (ii) Acidogenase
- (iii) Acitogenase
- (iv) Methogens
- (d) State wise details of bio-toilets constructed are attached as Annexure.

However, till date no bio-toilet has been constructed in District Satna.

Total  16507  bio-digesters  have  been  installed  in  different  states.    Bio-digesters have many variants as per the number of users and considering the design for 5-7 users, atleast 80000-112000 people have been benefitted by these bio-toilets.

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## : 2 :

ANNEXURE  REFERRED  TO  IN  REPLY  TO  PART  (d)  OF  LOK  SABHA UNSTARRED QUESTION NO. 2697 FOR ANSWER ON 04.08.2021 REGARDING 'BIO-TOILET BY DRDO'.

| S. No.   | State             |   No. of Biodigesters |
|----------|-------------------|-----------------------|
| 1.       | Jammu             |                   250 |
| 2.       | Punjab            |                   151 |
| 3.       | Haryana           |                     3 |
| 4.       | Delhi             |                    60 |
| 5.       | Uttar Pradesh     |                    42 |
| 6.       | Telangana         |                   150 |
| 7.       | Rajasthan         |                  4400 |
| 8.       | Assam             |                   100 |
| 9.       | Andhra Pradesh    |                    40 |
| 10.      | Uttarakhand       |                   500 |
| 11.      | Maharshtra        |                    60 |
| 12.      | Jharkhand         |                    20 |
| 13.      | Bihar             |                   187 |
| 14.      | Tamil Nadu        |                    20 |
| 15.      | West Bengal       |                     3 |
| 16.      | Kerala            |                    80 |
| 17.      | Lakshadweep       |                  1863 |
| 18.      | Goa               |                  7000 |
| 19.      | Arunachal Pradesh |                    40 |
| 20.      | Karnataka         |                    20 |
| 21.      | Odisha            |                    30 |
| 22.      | Chandigarh        |                     8 |
| 23.      | Madhya Pradesh    |                   100 |
| 24.      | Himachal Pradesh  |                    40 |
| 25.      | Tripura           |                     5 |
| 26.      | Leh               |                   750 |
| 27.      | Mizoram           |                   585 |
|          | Total             |                 16507 |

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