Metallurgical engineering and tube rolling

Treatment of metalworking fluids in metallurgical and tube roll engineering

Description Reagents and equipment Implemented projects Other solutions

The metalworking fluids (cutting coolants) are steady state, kinetically stable emulsions used in intensive cutting, squirting, rolling, die forging, drilling processes et al.

The spent cutting emulsion is a consumable to be replaced.

Due to high stability of spent cutting coolant emulsions, their discharge to general purpose treatment facilities of the companies deteriorates wastewater treatment since highly emulsified petroleum products are not captured by settlement ponds and are passed through effluent filters.

In fact, the metalworking fluids are not decomposed naturally, therefore their discharge to ponds and treatment facilities preliminary mitigation is not permissible.

Indicator	Spent metalworking fluids	Similar metalworking fluids treatment methods	After implementation of solution
Petroleum products	1000-5000 mg/l	100-200 mg/l	0.05 - 10 mg/l
pH	4.0-9.0	6.5-8.5	6.5 – 8.5

Example of cutting tool lubricants decomposition scheme

The technological scheme for the lubricating coolant treatment provides its destabilization in the acidification reactor by lowering the pH value by an acid solution. Further, the destabilized emulsion is processed in the separation reactor by solutions of the coagulant Biomiсrogel® BMG-P2, coagulant and flocculant based on polyacrylamide. As a result of the chemical dosing and mixing, oil products are bound and poorly soluble particles are formed. After the settling, the formed sludge goes to a belt filter for filtering, and the treated waste water is discharged by gravity.

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Reagents Equipment

Biomicrogel® Coagulant BMG⁠⁠-⁠⁠P2 Biomicrogel® Flocculant BMG-С2

Reactor-type plant for the treatment of cooling lubricants

How it works Preparation Transportation and Storage Disposal Documents

Biomicrogel^® coagulant BMG⁠⁠-⁠⁠P2 catch any mineral and vegetable oils, animal fats, and oil and petroleum products in water effectively, based on sweep- coagulation process.

They catch any mineral and vegetable oils, animal fats, and oil and petroleum products in water effectively, based on sweep- coagulation process.

After separation of oil-water mixture both treated water and removed petroleum products can be returned to the process cycle and re-used. Biomicrogel^® coagulant BMG⁠⁠-⁠⁠P2 are well compatible with almost all flocculants based on inorganic salts of polyvalent metals cleaning water from suspended particles.

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Biomicrogel^® coagulant BMG⁠⁠-⁠⁠P2 catch any mineral and vegetable oils, animal fats, and oil and petroleum products in water effectively, based on sweep- coagulation process.

They catch any mineral and vegetable oils, animal fats, and oil and petroleum products in water effectively, based on sweep- coagulation process.

Biomicrogel^® coagulant BMG⁠⁠-⁠⁠P2 must be diluted in water using static mixer or other appropriate mixing device suitable for making homogeneous solution.

The following FCCW Code is applicable: 7 23 301 02 39 4: “The sediment (sewage sludge) from the flotation treatment of oily wastewaters, containing less than 15% of petroleum products”.

Biomicrogel^® coagulant BMG⁠⁠-⁠⁠P2 are supplied as powder. They are packed in 25 kg polypropylene bags, and the bags are then placed on pallets. Pallet houses 20 bags – 500 kg of the flocculant.

Biomicrogel^® coagulant BMG⁠⁠-⁠⁠P2 as solution are supplied in 1000 liters IBC containers.

Store the product in cool and dry place. Keep the entire protective packaging safe before using the product.

Guaranteed storage life in dry form – 24 months as of date of manufacture. To avoid hydrolysis or increase of microbial counts, fungi, hence resulting in deterioration, use the treatment solution within 14 days, if prepared on your own.

After the precipitation from water the Biomicrogel^® BMG-P2 flocculant shall be disposed of in accordance with effective legislation.

The following FCCW Code is applicable: 7 23 301 02 39 4: “The sediment (sewage sludge) from the flotation treatment of oily wastewaters, containing less than 15% of petroleum products”.