PT BANYU BIRU SEJATI

Water and Waste Water Treatment Contractor

Bumi Satria Kencana, Block C No. 9

Jln. KH Noer Ali, Bekasi 17144

Tel. 021-8841762 Fax. 021-8856176

BANYU URIP EPC 5

PROJECT NAME INFRASTRUCTURE FACILITY PROJECT

BOJONEGORO

A. Design Data

01. Primary influent flow rate (Q0) = 24 m3/day

02. Volume Collection Pit = 95.94 m3/day

03. TSSin concentration (X0) = 200 mg/L

04. Waste activated sludge SS concentration (Xw) = 3000 mg/L

05. Effluent SS concentration (Xe) = 50 mg/L

Laundry WWTU Flow Diagram & Paramaters

PROCESS FLOW DIAGRAM WITH MATERIAL BALANCE

FOR LAUNDRY WASTEWATER TREATMENT UNIT

DOCUMENT NO. PURCHASE ORDER NO. CLIENT / END USER NAME

IDBC-BS-VDPRC-C00003 IDBC-RH-MXXEP-C00975-090 MOBIL CEPU LTD.

IDBC-BS-VDPRC-C00003 Process Flow Diagram with Material Balance for Laundry WWTU_Rev.C Page 1

BANYU URIP EPC 5

PROJECT NAME INFRASTRUCTURE FACILITY PROJECT

BOJONEGORO

PROCESS FLOW DIAGRAM WITH MATERIAL BALANCE

FOR LAUNDRY WASTEWATER TREATMENT UNIT

DOCUMENT NO. PURCHASE ORDER NO. CLIENT / END USER NAME

IDBC-BS-VDPRC-C00003 IDBC-RH-MXXEP-C00975-090 MOBIL CEPU LTD.

B. Design Calculation of Material Balance for Laundry WWTU

V = 24 m3

01. Waste activated sludge flow rate (Qw) = 0.11 m3/day

02. Sludge retention time (also called sludge age), SRT = 15 days

03. Effluent Flow Rate (Qe) = 23.89 m3/day

Qw = 0.11 m3/day

Where:

Qe = 23.89 m3/day

= 1.51 kg/daySolidOut

Prepared by :

PT BANYU BIRU SEJATI

Qw = (V*X0)/(SRT*Xw)

SolidsOut = (Qe*Xe)+(Qw*Xw)

Qe = Q0-Qw

IDBC-BS-VDPRC-C00003 Process Flow Diagram with Material Balance for Laundry WWTU_Rev.C Page 2