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  1. Dairy processing waste water

  2. Meat processing

  3. Fruit, vegetable, and food processing waste waters


Dairy Processing Waste Water

Waste waters from dairy operations and from processing and manufacture of dairy products can contain significant quantities of high quality fats and proteins.

  • These contribute to very high biological oxygen demand (BOD) of discharge waters.
  • It is also a waste of potential resource if these products are disposed of to landfill or waste ponds.
  • Our calcium bentonite clays have a very high affinity for both fats and proteins.
  • These clays can be combined with appropriate flocculants to facilitate rapid separation of fats and proteins from dairy waste and dairy processing waste
  • The clays are suitable for use in stock feeds, when feed grade flocculants are used the recovered fats and proteins can be used in stock feeds.
  • This enables effective treatment of water to reduce BOD and also recovers fats and proteins that can be used productively.

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Meat Processing

Clay treatment processes for recovery of usable fats, tallow and protein from meat processing, food processing and dairy product processing industries.

a) Removal and recovery of fats and proteins from abattoir waste waters

Removal of proteins, fats and colour from animal and food processing waters

  • The clay used has a very high binding capacity for proteins in water.
  • This means that proteins can be recovered from complex mixtures of products and reused or disposed of as appropriate.
  • Industries that treat protein rich waters include food-processing, abattoirs, rendering operations.
  • It also includes treatment of food products and beverages and wine making.
  • The protein/clay complex is easily removed from water phase, the solids containing clay and proteins can be used as feedstock ingredients, as soil conditioner or disposed or as per local regulatory requirements.
b) Removal and recovery of tallow and proteins from stickwater and other waste waters from rendering and animal by-products industries

Clay in combination with natural flocculants is able to remove fats and proteins from abattoir wastewaters.

  • Watheroo Minerals bentonite are GRAS status, so are considered suitable for inclusion in animal feeds.
  • Natural polymer and food grade additives are added to clay to enhance adsorption of fats and other valuable compounds, and to flocculate the clay
  • The recovered fats and proteins are mixed with clay and additives which means the recovered solids are suitable for inclusion in animal feeds
  • This process ensures that wastewaters are treated, and at the same time proteins and fats in waste stream are recovered.
  • These recovered products can be used in rendered products for stock feeds, or further processed to recover valuable components.
  • These gives economic values to waste materials that otherwise are disposed of to landfill. A process that has significant direct and indirect costs.

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Fruit, Vegetable, and Food Processing Waste Waters

Waste waters from processing and manufacture of food products can contain significant quantities of high quality fats, proteins, carbohydrates and nutrients.

  • These contribute to very high biological oxygen demand (BOD) of discharge waters.
  • It is also a waste of potential resource if these products are disposed of to landfill or waste ponds.
  • Our calcium bentonite clays have a very high affinity for both fats and proteins.
  • These clays can be combined with appropriate flocculants to facilitate rapid separation and concentration of useful products from food processing waste waters.
  • The clays are suitable for use in stock feeds, when feed grade flocculants are used the products can be used in stock feeds or other applications.
  • This enables effective treatment of water to reduce BOD and also concentrates and recovers products so that they can be used productively.

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