Wastewater management for the vegetable processing industry
The vegetable processing industry is one of the most complex industries in the agri-food sector due to the great variety of raw materials, industrial processes used, as well as final products. Salher studies the most efficient methods to treat wastewater derived from these processes.
The cleaning of the raw material is an operation which can be carried out one or several times throughout the process in order to eliminate undesirable substances.
The water used in the production process must be treated before being discharged. This way the volume of wastewater generated is important.
Regarding the pollutant load of these discharges which basically contains organic matter and solids in suspension, its presence and concentration depend on several aspects: type of raw material, production system employed, level of production, type of industry, etc.
For a salad packaging plant (lettuce, broccoli, spinach, kale) located on the outskirts of Warsaw (Poland), Salher has proposed in 2011 a facility with a capacity of up to 100 m3/day which includes:
- A pumping station with a flow meter
- Pre-treatment prior to the secondary treatment with the helical screw. (Reference: TA-HEL),
- Secondary treatment of low load active sludge, with nitrogen removal by biological means (nitrification – denitrification) and clarification process in compact tank (Reference: CHC-OXI-REC-C-ANOX),
- Biological sludge storage tank,
- Deodorization, reference CARBO-SAC.
Due to an increase in the production, the plant again required the engineering services of Salher.
The new WWTP designed, manufactured and set up by Salher has a treatment capacity of 400 m³/dayand has the following elements:
Conversion of the installed tank in the anoxic chamber to eliminate nitrogen.
Use of the pumping station, electromagnetic flow meter and a screening system with automatic cleaning.
Maintenance of the biological sludge tank.
The excesive use of fertilizers in intensive agriculture and the discharges of sewage and slurry from livestock contaminate the water with nitrates. Salher develops treatments to avoid pollution and...
Salher has 40 years of experience manufacturing pumping stations of glass fiber reinforced polyester (GFRP) for any type of clean water and wastewater, of multiple sizes.Salher pumping stations are...
IPS San Pedro del Ycuamandyyu Regional Hospital and IPS Villarica have acquired recently two Salher water treatment systems.The Paraguayan Instituto de Previsión Social is implementing renovations...
Designed and developed to meet all the requirements in water treatments.
Projekt i wymiarowanie
Projekt inżynieryjny i nadzór.
Produkcja urządzeń GRP, polipropylenu i stali.
Montaż urządzeń modułowych i koordynacja na placu budowy.
Wybór sprzętu i oprzyrządowania w celu zapewnienia integralnego rozwiązania do oczyszczania ścieków.
Pomoc techniczna w elektromechanicznym i elektrycznym montażu każdej oczyszczalni ścieków.
Kontrola serwisowa po instalacji od wykwalifikowanego personelu technicznego.
Kursy i wsparcie dokumentalne
Szkolenie teoretyczne i praktyczne oraz dostarczenie instrukcji obsługi, uruchomienia i konserwacji.
Carrera Toledana, 33. Arganda del Rey. Madrid 28500. Spain.
+34 91 870 00 15
Spain / +34 91 870 00 15
France / +33 1 84 16 47 84
Malaysia / +60 102 452 108
Mexico / +52 55 5081 8437
Peru / +51 620 0722
Poland / +48 22 737 24 95
Portugal / +351 234 795 821
Paraguay / +595 981 252 845
Philippines / +63 (0) 977 215 4199
Engineering – Wastewater treatment – Purification – Liquid/solids separation equipment for industrial and municipal process applications – Surface water – Groundwater – Water Reuse – Drinking Water – Hydrocarbon and Oil Water Separation