How to use of Wastewater in Breweries?
Beer and spirit production use a lot of water, and while progress has been made, there is still more that can be done to reduce the water footprint of brewing and distilling. The characteristics of industrial wastewater created during the manufacturing process, in particular, enable organisations to maximise resource efficiency by generating biogas through anaerobic digestion (AD).
Both brewing and distilling utilise a large amount of water!
According to the Beverage Industry Environmental Roundtable, beer's average water use ratio (WUR) is currently around 3.35 litres of water per litre of beer (BIER). The WUR of spirits is roughly 32.7 to 1, and the ratio is still 10.9 litres of water per litre of spirits produced after deducting the water required for cooling.
After treatment, much of the water used in the manufacturing process becomes wastewater, which is deposited into a sewer or river.However, a considerable portion of this effluent may be recovered, treated, and reused for things like boiler feed water, cooling processes, and cleaning activities. Because the cost of dumping industrial wastewater can be twice that of supplying water from the mains, there is a strong financial incentive to invest in procedures that reduce the volume of industrial wastewater.
In addition to the environmental and economic benefits of reducing the plant's water demand, there is an operational benefit for the brewery or distillery. As the weather becomes increasingly harsh and unpredictable in India, relative drought conditions are becoming more often, putting pressure on supply. As a result, reducing the amount of fresh water used in manufacturing will allow production to continue even if water supplies become scarce.
Furthermore, choosing the right wastewater treatment process can reduce an industrial facility's energy costs and carbon footprint. Because sugars, ethanol, and soluble starch are present in the wastewater, it has a high chemical oxygen demand (COD), making it perfect for AD biogas production.
An on-site combined heat and power (CHP) plant can be used to provide electricity and heat for a facility, reducing reliance on non-renewable resources and lowering energy costs. Excess biogas and electricity produced by distilleries and breweries can occasionally be sold back to the grid.
Each brewery sector has its own collection of wastewater sources that must be evaluated thoroughly in order to choose the optimum treatment and reuse solution.
Netsol Water is a major water and wastewater treatment company in India that manufactures WTPs, WWTPs, STPs, and ETPs, among other services. It's become our job to save the world.
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