The document calculates the water demand and wastewater generation for a proposed dhobighat or laundry facility in Dighwara. It determines that the facility will require 12,150 liters of water per day and generate 9,720 liters of wastewater daily. The design capacity of the effluent treatment plant for the facility should be 14,580 liters to treat 1.5 times the amount of expected wastewater.

1. DIGHWARA
Water demand calculation of Dighwara Dhobi ghat
Wastewater generation from the proposed facility
Design Capacityofthe ETP wouldbe 1.5 times the wastewater discharge:
1.5 x 9720 = 14,580 litres
= 0.014 MLD
= 0.01 MLD
1 Total number of identified dhobis in Dighwara 6
2 Average number of clothes washed per day in Dighwara (as per survey) 300
3 Average number of clothes washed per day per dhobi in Dighwara 50
4 No. of washing units proposed in one dhobighat 6
5 Average water requirement for washing of 1 cloth 15 litres
Total water demand for 12 dhobis in proposed dhobighat 12 x 50 x 15
= 9000 litres
S. No. Water use and Wastewater discharge Litres
1 Average estimated water use in washing/day @15liter per clothe 9000
2 Leakageand wastageof water @ 20% 1800
3 Other usage of water including of W/C, Bathing @ 15 % 1350
4 Total Water demand for proposed Dhobighat (water use/day) 12150
5 Total Wastewater discharge in proposed dhobighat@80% 9720