Who is the Dairy Effluent Treatment Plant Manufacturer in Rajasthan?
In 2021, the Indian dairy market was worth INR 13,174 billion.Since 1998, India has been the world's biggest producer and consumer of dairy products, with a steady increase in the availability of milk and milk products. Dairy farming is a vital aspect of the rural Indian economy, providing both jobs and money.
Rajasthan currently is the sixth largest dairy market in India. Cow and buffalo milk are the most common types of milk produced in Rajasthan. The market is estimated to increase at a CAGR of 14.7% between 2021 and 2026. The types of milk products produced in Rajasthan are liquid milk, ghee, curd, paneer, ice-cream, table butter, skimmed milk powder, frozen/flavoured yoghurt, fresh cream, lassi, butter milk, cheese, flavoured milk, dairy whitener, sweet condensed milk, infant food and malt based beverages.
Netsol Water Dairy Effluent Treatment Plants use advanced treatment systems which can save up to 80% of their fresh water by recycling it.
Wastewater produced by dairy industry
The dairy business is the most polluting food industry in terms of massive amounts of water used, especially when milk and milk products are produced. The wastewater comprises dissolved carbohydrates, proteins and fats that are biodegradable and organic in nature.
Sources of Wastewater in dairy industry
The following are some of the ways wastewater is produced:
1) Cleaning and removing any residual product from tanks, tankers, cans, pipe systems and other processing equipment’s.
2) Spillage due to leaks, overflowing cans and negligent worker handling.
3)Wastewater creation as a result of cleaning actions in the processing unit.
4) Spilled products, including by-products such as whey.
5) Whey, which is mostly produced in the cheese industry, is the principal pollutant in milk processing effluent.
6) Cheese whey wastewater is created during the manufacturing process.
7) Milk and whey permeates have a low solid content and are high in soluble components, with lactose accounting for approximately 80% of the total.
Poorly treated wastewater with a high level of contaminants, as a result of inadequate design, operation and treatment system produces serious environmental difficulties. Trickling filters, anaerobic sludge blanket reactors, wastewater stabilisation ponds and aerated lagoons, electrocoagulation are examples of technologies used in the treatment of dairy wastewater.There is the cost of labour as well as the challenge of disposing of sludge generated by the treatment plant.
Characteristics of dairy industry wastewater
Unlike many other businesses, the dairy industry is the leading producer of industrial waste. The dairy industry's method discloses that about 2 litres of water are utilised to process 1 litre of milk. Every litre of milk produced generates about 2.5 litres of effluent.This demonstrates the vast amount of effluents that must be treated in order to improve operations and comply with environmental requirements.
Oil and grease
While pasteurisation or homogenization are used to produce milk, butter or cheese, this results in significant amounts of BOD (Biochemical oxygen demand) and COD (Chemical oxygen demand) that must be treated before being discharged into the environment.
Step-by-step procedure for treatment of Dairy Industry Wastewater
Step-1: The effluent from all streams that reaches the ETP is homogenized in the underground equalisation tank after passing through a bar screen chamber and an oil and grease trap.
Step-2:To ensure homogeneity, the equalisation tank is equipped with air agitation.
Step-3:The effluent is raised and sent to a flash mixer, where the coagulant/chemicals are dosed.
Step-4:Chemical dosing is done with the use of automatic dosing pumps for accurate amounts of chemical dosing.
Step-5:Air agitation is used to mix liquids in dosing tanks and flash mixers.
Step-6:The amount of air in the piping can be controlled by valves.
Step-7:The flash mixer's overflow solution should be transferred to the clariflocculator tank.
Step-8:A dosing pump is used to introduce a flocculent chemical to this tank, which helps the contaminants form huge flocs in the form of sludge.
Step-9:For sludge separation, the clarifier is used.
Step-10:Sludge settles in the tube settler's bottom and treated water is sent to biological treatment.
Step-11:Sludge from the bottom of the clarifier is dewatered using sludge drying beds or a filter press system and sludge cakes are made once the water is separated.
Step-12:Solid waste is disposed of in landfills.
Step-13:Sludge settles at the bottom of the secondary tube settler and treated water overflows into a holding tank.
Step-14:Water from the sludge dewatering system is filtered and returned to the equalisation tank.
Step-15:Treated water is passed to a DMF (Dual Media Filter) for final TSS treatment.
Step-16:Water from the DMF is filtered via an ACF (Activated Carbon Filter) to remove colour, odour and other contaminants. Water may also be passed through an RO Plant for further treatment as per requirement.
Step-17:At the end of the process, the water is released or used for horticulture.
Flow-chart for dairy industry wastewater
Benefits of Dairy Industry ETPs
The following are some of the important aspects of our dairy effluent treatment plants:
• Effluents can be collected from processing systems, sanitary installations and even condensation systems, resulting in proper wastewater treatment for better reuse,
• High-pressure nozzles can be installed to limit water usage and ensure that every drop of water is saved,
• Effluent can be converted to treated water using processes such as membrane separation, otherwise, serious diseases and dangerous infections can occur when such untreated wastewater mixes with ground water.
• The footprint is small,
•Reclaimed water is odourless and colourless,
•Sludge creation is kept to a minimum,
• COD, BOD and pollutant removal efficiency are high.
Dairy processing has a significant environmental impact due to its high organic and nutritional content. Large volumes of dairy wastewater with extreme pH variations cause a variety of pollution issues, including rapid dissolved O2 depletion due to high organic loading, resulting in anaerobic conditions, the release of volatile toxic substances, the destruction of aquatic life and subsequent environmental damage.
Untreated dairy sector effluent discharge poses a severe threat to surface and ground water, jeopardizing our drinking water supplies and the aquatic ecology. We treat dairy industry wastewater in Rajasthan and other cities in India, with high organic load and odour so that it is suitable for reuse or discharge in compliance with environmental requirements
Choosing Netsol Water for your effluent treatment!
We have a global client base and over 10 years of expertise. The notion of commissioning Wastewater Treatment Plants for various industries and Sewage Treatment Plants is one of our environmental services. We all know that water is a valuable resource that is rapidly depleting. This is a major issue because the scarcity of this resource is causing serious environmental issues. As a result, it is our responsibility to conserve water while also ensuring that wastewater is treated and water pollution is avoided.