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Method of biocide treatment of circulating water
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Thin-layer module
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Device for fermenting biomass
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Polymer composition
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Apparatus for wet cleaning of gas
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Contact clarifier
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Polymeric composition
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Method for controlling process of biological purification of effluents in aeration tanks with false sections
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Method of producing disinfecting agent
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Method of water treatment
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Method of regeneration of na-cation exchanger
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