lamella separator for waste water of a vegetable manufacturer

practical conditions:

A manufacturer of vegetable canning has waste water in very fluctuating conditions. The reason is the saison-manufacturing. The flow rate and also the concentrations of the waste water are very fluctuating. This means extremely high waste water costs and also big problems in the municipal waste water plant.

To limit the waste load and to reduce the flow peaks a pre-separation was installed.

capacity:

vegetable production	: 40,000 t/a (6 t/h)
products	: carrots, spinach, peas, beans, cultiflower, onions
capacity preseparation	: 75 m³/h
max. inlet concentration	: 20,000 - 40,000 mg/l COD
required outlet concentration	: max. 2,000 mg/l COD

chosed process:

dewatering screw
lamella separator
biological waste water treatment with sludge recirculation

The dewatering screw is separating bigger particles (over 1 mm).

The lamella separator removes the fine particles. The fine particles / flocs separate onto the lamellas and slids into the sludge funnel. From time to time the sludge is discharged with a pump.

The last step is a biological treatment with aeration.

With this treatment the required outlet concentrations could be kept certainly. For example during manufacturing carrots the COD-value was reduced from 16,000 to 1,300 mg/l.

The Leiblein company delivered the lamella separator for this process.

technical data:

clarification surface	: 100 m²
lamella distance	: 40 mm
material casing / lamellas	: steel coated / polypropylene
auxilliary equipment	: scraper, anti floating locking frost free heating of sludge funnel

back to 'referenes process water'

All in all:

purification of effluents - an optimal solution!

For more informations please contact us:

Leiblein GmbH · Adolf-Seeber-Str. 2 · 74736 Hardheim · Germany ·	Phone:	+49 (0) 6283 - 2220 0
	Fax:	+49 (0) 6283 - 2220 50
	E-Mail:	leiblein@leiblein.com
	Homepage:	http://www.leiblein.com