Solutions for water treatment in the beverage industry
In the beverage and spirit industry, the discharges show an extreme irregularity in terms of flows, wastewater composition, contaminants concentration and production seasonality.
Reducing wastewater from beverage manufacturing industry.
Water is the basic raw material to produce beverages, thus Salher analyzes the most convenient treatment according to the production volume, manufacturing methods and the outlet parameters required.
These analysis tasks are performed both for the manufacturing process water and for the discharge wastewater.
Wineries water treatment.
The production of one liter of wine requires between 30 and 250 liters of water. Wine discharges are not toxic, however, they have an important pollutant effect due to the high organic load.
The wineries discharges can be variable – volume and pollutant concentration – due to the seasonal nature of the production (up to 60% of the spillage occurs during the period of harvesting and transfer of the wine), the volume of production of each winery and the operations carried out such as processing, ageing, storage and bottling.
There are several stages and solutions for winery wastewater treatment:
Pretreatment and advanced primary treatments.
Physical treatment.
Liquid-solid separation is required to avoid clogging in pipes, pumps and other water treatment elements.
Salher recommends screening system to separate coarse and fine particles (larger than 1 mm) such as seeds, peels, branches, etc.
Physical-chemical treatment.
For primary treatment, we recommend a DAF (Dissolved Air Flotation) equipment, such as our Vespa, to remove the thinnest solid particles and the floating waste present in the water (oils, greases, …).
Through the injection of chemical products, the physico-chemical treatment facilitates the coagulation and flocculation of suspended particles, and facilitates their flotation for subsequent removal. With this treatment , it is possible to improve the removal yields of suspended solids, oils and grease to more than 95%. This also leads to a reduction of BOD5 equal to or greater than 50%.
Secondary biological treatment.
The biological treatment aims to remove the organic matter (BOD5), suspended matter (SM), and performs the oxidation of reduced nitrogen (NTK) to nitrate (NO³) => nitrification phase.
Salher offers four different types of secondary treatment:
1. Low load activated sludge treatment
With this treatment, the removal of organic matter and colloidal solids present in wastewater is performed in an aerobic environment through the intervention of microorganisms for its degradation.
For a better productivity, an oxygen supply and distribution system is added in the biological reactor through a fine bubble diffusers grid. These diffusers (60 microns) achieve high performances in the oxygen transfer processes thanks to their small diameter and slow rise up to the surface.
The clarification stage, also called “secondary settling ” aims to separate by density difference the biological solids from water, thus obtaining sludge in the lower part of the reactor and a clarified water at the outlet of the equipment.
2. Moving bed Biofilm Reactor process (MBBR)
This treatment reduces the volume of biological reactors. A settling tank shall be installed for the removal of the sludge contained in the reactor.
3. Membrane bioreactor process (MBR)
The ultrafiltration membranes system replaces the conventional activated sludge treatment and combines filtration, aeration and clarification in a single operation. Its compactness and modularity are also remarkable. Another remarkable element of this system is its compactness and modularity; if necessary to treat larger flows, simply expand the number of cartridges quickly and easily. The main advantages of the MBR treatment, compared to other options are the following:
- Lower volume in the biological reactor.
- Lower production of sludge, approximately 50 – 60%, compared to the low load activated sludge treatment.
- Better outlet water quality.
- Possible water reuse.
- Compliance with the strictest environmental regulations.
4. Biological treatment with ultrafiltration system with ceramic membrane.
This system combines a biological reactor with an external ultrafiltration with inorganic membranes.
Complementary solutions to reduce the flow and pollutants in winery wastewater.
To avoid the installation of a wastewater treatment plant with a capacity to treat a volume much larger than the one needed, the following measures shall be implemented:
- Separate industrial from the urban wastewater (water issued from sinks) and rainwater for irrigation because they do not have the same contamination values.
- Perform a prior cleaning of the equipment to eliminate the sub-products (solids and wine lees). Use pressurized water afterwards.
- Raise awareness and train employees regarding water use.
Havana Club rum factory in Cuba
Complete WWTP with plates tanks.
Morga Txakoli Winery in Spain
Complete WWTP with membrane bioreactor and ultrafiltration ceramic membranes.
Sumesa juices factory in Ecuador
Complete WWTP with biological treatment by low load activated sludge in container.
ACTION AREAS
Projects
Discover our potential to innovate and create the ideal solution for every challenge.Bolivia’s new biodiesel plant will be equipped with a Salher effluent treatment station
The project for Bolivia's second biofuel factory in La Paz is currently under construction. For the management of its wastewater, Salher has designed and manufactured an industrial effluent treatment plant.Bolivia is the most vulnerable country to climate change in...
The latest Salher drinking water treatment plant will be used in an agri-food industry in Paraguay
Salher has commissioned a drinking water treatment plant for Bimbo's new factory in Paraguay. Through these technologies, the leading multinational bakery consolidates its sustainability objectives concerning water.The scarcity of available drinking water is one of...
Latin America set sights on Salher’s water reuse solutions
Over the last year Latin America has shifted the balance towards sustainabily to protect its water resources and improve the region's quality of life. An increase in investment and the number of success stories has encouraged many companies to rely on Salher water...
What do we do with the wastewater generated by the pharmaceutical industry?
Several research studies warn of the adverse effects of pollution generated by pharmaceutical production plants on the environment, such as the extinction of certain species or the spread of antimicrobial resistance, which could put human health at risk. To control...
Salher Products
Designed and developed to meet all the requirements in water treatments.
salher@salher.com
Carrera Toledana, 33. Arganda del Rey. Madrid 28500. Spain.
+34 91 870 00 15
Spain / +34 91 870 00 15
Poland / +48 22 737 24 95
Portugal / +351 234 795 821
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