The present invention relates to a diatomaceous earth composition with a low endotoxin content, comprising an agglomerated mixture of calcined diatomaceous earth particles and water, wherein the mass ratio of calcined diatomaceous earth particles and water is in the range of 1:1.0 to 1:2.0, and wherein the endotoxin content of the diatomaceous earth composition is equal to or less than 0.5 EU/mL. In a further aspect, the present invention relates to a method for producing the diatomaceous earth composition with a low endotoxin content. In another aspect, the present invention relates to the use of the diatomaceous earth composition with a low endotoxin content as a precoat agent for the precoat filtration in biopharmaceutical applications.

The present invention relates to a diatomaceous earth composition with a low endotoxin content, comprising an agglomerated mixture of calcined diatomaceous earth particles and water, wherein the mass ratio of calcined diatomaceous earth particles and water is in the range of 1:1.0 to 1:2.0, and wherein the endotoxin content of the diatomaceous earth composition is equal to or less than 0.5 EU/mL. In a further aspect, the present invention relates to a method for producing the diatomaceous earth composition with a low endotoxin content. In another aspect, the present invention relates to the use of the diatomaceous earth composition with a low endotoxin content as a precoat agent for the precoat filtration in biopharmaceutical applications.

The invention relates to the methods for sewage treatment contaminated by mechanical impurities, fats, proteins and other organic and inorganic compounds, and can be used for purification and water disinfection contaminated by heavy and radioactive metals, saturated or unsaturated fats, filtrate from landfills for solid household waste, disposals of meat processing plants, and water contaminated with oil and petroleum products. The method for treatment and disinfection of industrial wastewater includes flotation, electrocoagulation and filtration. The new is that the method also provides: mixing water with powder hydrophobic carbon-based sorbent with high absorbing capacity; filtration of a suspension of water and a carbon sorbent on a rubber-based hydrophobic sorbent; decomposition of saturated and unsaturated fat, oil, petroleum products and other organic substances accumulated on carbon and rubber sorbents; floatation in flow mode with the addition of hydrogen peroxide; recovery of the active substance in the presence of hydrogen peroxide; and its further reuse; electrocoagulation in flow mode with water saturation with oxygen and hydrogen, formed on indispensable carbon or metal electrodes, and on the active substance based on the of aluminum, titanium, sodium, tin, copper, and other metals; water disinfection by electro-cavitation; generation of active substance based on the iron and titanium atoms; water filtration on the precoat filter, filtering on activated carbon filter.

The invention relates to the methods for sewage treatment contaminated by mechanical impurities, fats, proteins and other organic and inorganic compounds, and can be used for purification and water disinfection contaminated by heavy and radioactive metals, saturated or unsaturated fats, filtrate from landfills for solid household waste, disposals of meat processing plants, and water contaminated with oil and petroleum products. The method for treatment and disinfection of industrial wastewater includes flotation, electrocoagulation and filtration. The new is that the method also provides: mixing water with powder hydrophobic carbon-based sorbent with high absorbing capacity; filtration of a suspension of water and a carbon sorbent on a rubber-based hydrophobic sorbent; decomposition of saturated and unsaturated fat, oil, petroleum products and other organic substances accumulated on carbon and rubber sorbents; floatation in flow mode with the addition of hydrogen peroxide; recovery of the active substance in the presence of hydrogen peroxide; and its further reuse; electrocoagulation in flow mode with water saturation with oxygen and hydrogen, formed on indispensable carbon or metal electrodes, and on the active substance based on the of aluminum, titanium, sodium, tin, copper, and other metals; water disinfection by electro-cavitation; generation of active substance based on the iron and titanium atoms; water filtration on the precoat filter, filtering on activated carbon filter.

Disclosed is a method for the recovery of filtering agents and rolling oil from a mixture containing used rolling oil and filtering agents coated with used rolling oil in which the mixture containing rolling oil and filtering agents is subjected to vacuum distillation under agitation in a reactor equipped with an agitator and vapour precipitator. The vacuum during distillation is regulated with an inert gas flow, the rolling oil is condensed and collected, and a rolling oil which can be reused for rolling and a powder filtering agent which can be reused are obtained.

Disclosed is a method for the recovery of filtering agents and rolling oil from a mixture containing used rolling oil and filtering agents coated with used rolling oil in which the mixture containing rolling oil and filtering agents is subjected to vacuum distillation under agitation in a reactor equipped with an agitator and vapour precipitator. The vacuum during distillation is regulated with an inert gas flow, the rolling oil is condensed and collected, and a rolling oil which can be reused for rolling and a powder filtering agent which can be reused are obtained.

The present disclosure includes compositions and methods for filtering a liquid, e.g., water. The compositions herein may include a filter aid comprising a filter medium and packaging having at least one water-soluble portion. When the filter aid is introduced into the liquid to be filtered, the water-soluble portion(s) may dissolve or otherwise degrade in order to expose the filter medium to the liquid.

The present disclosure includes compositions and methods for filtering a liquid, e.g., water. The compositions herein may include a filter aid comprising a filter medium and packaging having at least one water-soluble portion. When the filter aid is introduced into the liquid to be filtered, the water-soluble portion(s) may dissolve or otherwise degrade in order to expose the filter medium to the liquid.

The present disclosure includes filter aids comprising expanded perlite and methods for preparation thereof. The perlite used for making the filter aids may be processed by dehydration, expansion, milling, and/or screening. The expanded perlite has a higher density compared to expanded perlite prepared without dehydration.

The present disclosure includes filter aids comprising expanded perlite and methods for preparation thereof. The perlite used for making the filter aids may be processed by dehydration, expansion, milling, and/or screening. The expanded perlite has a higher density compared to expanded perlite prepared without dehydration.