Wastewater from the Dairy Industry

QUESTIONNAIRE /
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WASTEWATER FROM THE DAIRY INDUSTRY

The completed questionnaire can be sent to: W-WWT.COM

E-Mail:

Company name : ………………………………………………………………………………………….

Address : ……………………………………………………. Telephone : …………………...

City : ……………………………………………………..Fax :…………………….

Country : ……………………………………………………..E-mail :……………………..

Postal code : …………………………………………………… Date :……………………..

Contact person : …………………………………………………………………………………………

1 Processing volumes

Processing of
Milk / ……… kg / hour / ……… kg / day
Butter / ……… kg / hour / ……… kg / day
Powdered milk / ……… kg / hour / ……… kg / day
Yoghurt / ……… kg / hour / ……… kg / day
Fruit yoghurt / ……… kg / hour / ……… kg / day
Hard cheese / ……… kg / hour / ……… kg / day
Soft cheese / ……… kg / hour / ……… kg / day
Ice cream / ……… kg / hour / ……… kg / day
Sweetened condensed milk / ……… kg / hour / ……… kg / day
Other…… / ……… kg / hour / ……… kg / day
Other…… / ……… kg / hour / ……… kg / day

2 Production details

Production systems / units
Daily production time / .…………hours a day
Weekly production time / …………days a week
Cleaning time (per period) / ……….………...hours
Number of cleaning periods / ..……. a day / a week
Which cleaning agents are used in which amounts? / ………..….… kg / day

3 Water flows

Waste water volumes
Production water
Max. flow rate / ………m3 / hr / ………m3 / day
Duration peak flow / ……………min
Average flow rate / ………m3 / hr / ………m3 / day
Waste water flow duration / ………hours a day / ………days a week
Is there a limitation to discharge
period of the waste water? / ………m3 / hr / ………m3 / day
Other sources of waste water
Truck wash / ………m3 / hr / ………m3 / day
Sanitary water / ………m3 / hr / ………m3 / day
Yard water / ………m3 / hr / ………m3 / day
Rain water / ………m3 / hr / ………m3 / day
Others, please specify…………………….. / ………m3 / hr / ………m3 / day

4 Waste water characteristics

Influent values
(of the system to be supplied) / average / maximum / required
effluent values
COD (Chemical Oxygen Demand) / ………mg/l / ………mg/l / ………mg/l
BOD520 (Biological Oxygen Demand) / ………mg/l / ………mg/l / ………mg/l
TKN (Total Kjehdahl Nitrogen) / ………mg/l / ………mg/l / ………mg/l
TP (Total Phosphorous as P) / ………mg/l / ………mg/l / ………mg/l
FOG (Fats, Oil & Grease) / ………mg/l / ………mg/l / ………mg/l
SS (Suspended Solids) / ………mg/l / ………mg/l / ………mg/l
Bi-carbonate [(HCO3)-] or temporary hardness / ………mg/l / ………mg/l / ………mg/l
Chloride (Cl -)(in case of brine water discharge) / ………mg/l / ………mg/l / ………mg/l
Nitrite (NO2-) / ………mg/l / ………mg/l / ………mg/l
Nitrate (NO3-) / ………mg/l / ………mg/l / ………mg/l
pH / min ……… / max……… / .…..to….....
Water temperature / min…....°C / max...... °C / …..…….°C
Important:
Analyses must be based on composite samples of a complete & representative production week
Specify the COD measuring method / permanganate (Mn) / dichromate (Cr)
Is there an existing wastewater treatment unit?
Are the mentioned characteristics measured before or after this unit? / Yes / no
Before / after / not applicable
Does the waste water contain curds? / Yes / no
Discharge values
Discharge to / Sewer / surface water
Green field site / yes / no

5 Technical information

Available utilities
Power supply / …………V (±……%) …….Hz
Potable water supply / ………….@ ……..bar
Hot water supply / Yes / no
Compressed air / …………nm3@...... bar
Specify the available surface
Others
Ambient conditions
Average and max. temperature in summer / average..…°C / max……°C
Average and min. temperature in winter / average…..°C / min……°C
Altitude above sea level / ……………..m

6 Other

Specify any existing waste-water treatment equipment as accurately as possible. If possible include drawings.
Customer’s remarks
Integration
Integration of system in existing building / Yes / no, please specify………………………
Integration of existing equipment in the new system / Yes / no, please specify………………………