In terms of production, consumption, export, and future possibilities, India's food processing sector is one of the World's largest. Because of the variety of goods created, as well as the varied fruits, vegetables, and raw materials used, the wastewater generated by this industry has a wide range of strength and features. The use of many preservatives, salts, colour, perfumes, oil, sugar, gelatine, and other ingredients, which are added according to the production requirements of the goods, contributes to the pollutant load in food processing wastewater or effluent.
What is industrial wastewater treatment in Food industry?
Water is employed as a component, an initial and intermediate cleaning source, a reliable raw material transportation conveyor, and the primary sanitizer for industrial machinery and regions. A significant portion of these waters are potential wastewaters that must be treated before being released into the environment.
Moderate to high BOD, high COD, high dissolved and suspended particles, very high nutrient content such as phosphorus, nitrogen, and heavy oil and grease define waste waters from food processing companies.
Non-chemical biological treatment, such as anaerobic treatment, is compatible with this effluent. For this business, aerobic biological treatment in the form of high-rate trickling filters or activated sludge plants is usually sufficient. However, sophisticated biological treatments such as moving bed bioreactor (MBBR) and membrane bioreactor (MBR) are recommended instead of the traditional activated sludge procedure due to the intermittent nature of wastewater discharge or higher shock loadings (ASP).
Using advanced treatment, such as Ultrafiltration (UF) and Reverse Osmosis, the treated effluent can be recycled at a level comparable to food-grade water (R.O.)
Alternatively, a Membrane Bioreactor (MBR) can be used in place of an MBBR to produce industrial-grade water with added R.O. to produce food-grade water.
A biological method perfectly suited for the pre-treatment of food industry’s waste water. Anaerobic process is an effluent treatment facility. An anaerobic system can be very effective and cost-effective for eliminating high quantities of BOD and COD when utilised prior to aerobic treatment, as it concentrates biological action and lowers heat loss. Anaerobic bacteria breaks down organic substances in wastewater, releasing methane and carbon dioxide into the atmosphere. Sludge settles at the bottom, and a crust might form on the top.
A membrane bioreactor (MBR) is a wastewater treatment strategy that connects a membrane process like microfiltration or ultrafiltration with a biological system like activated sludge. It is now widely used in municipal and industrial wastewater treatment. MBR technology is currently widely employed in almost every sector of the food and beverage industry, and it is often recognised as the best treatment solution, particularly where water reuse is necessary.
During the ultrafiltration (UF) process, water is forced through a semipermeable membrane. Water and low-molecular-weight solutes pass through to the permeate side of the membrane, while suspended particles and high-molecular-weight solutes remain on the retentate side.
RO is used in the food industry to concentrate fruit and vegetable juices, pre-concentrate milk and whey, and de-alcoholise alcoholic beverages. In wastewater reclamation, the use of RO as a final phase of wastewater treatment for water reuse and valuable component recovery appears to be promising.
Process water used in production and clean in place (CIP) processes produce a substantial volume of wastewater in the food and beverage industry. The volume, chemical loading, and profile of industrial wastewater might vary greatly depending on the use.
Netsol Water is a leader in the design and manufacture of plug-and-play modular wastewater treatment systems for the food and beverage processing industries. To deal with any form of food and beverage production effluent, we have a variety of process technologies that may be integrated in a modular design.
Pre-treatment, dissolved air flotation, biological treatment, clarifiers, and disinfection are some of the options. We may also use reverse osmosis to reclaim wastewater and use it as process water. Netsol Water Solutions can provide a cost-effective modular solution for any wastewater flow, any wastewater type, and can meet and exceed environmental compliance standards for the final effluent.