Industrial and municipal wastewater foaming may cause technical, health and safety issues for employees and equipment. Uncontrolled excessive foaming can lead to foam spills and excess labor time to clean up, pump cavitation and technical failure. When using Membrane Bioreactor (MBR) treatment one must pay extra attention to a correct defoamer selection. Membrane fouling is a common phenomenon due to incompatible defoamer chemistry: silicone oils (polydimethylsiloxane), polyglycols, etc’. Some of the possible effects are: severe operational and environmental problems, reduction in membrane permeability, frequent cleaning cycles, excessive foaming, increased oxygen demand, and poor effluent quality. Metalub MBR defoamers are inert to Membrane and bacteria.
Wastewater Treatment
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| Product | Application | Features |
|---|---|---|
| Water based adhesives | VOC-free and silicone-free defoamer on polymer-basis for aqueous coatings, adhesives, and paper coatings. Optimal effect despite addition of smallest amounts only. Compliant with FDA and/or EU food contact regulations. | |
| Water based adhesives | Silicone-free, polymer-based defoamer with anti-popping properties for aqueous adhesives. Compliant with FDA and/or EU food contact regulations. | |
| aqueous emulsion systems. highly effective against microfoam | VOC-free silicone-containing defoamer for aqueous adhesives and sealants emulsion systems which is highly effective against microfoam. Compliant with FDA and/or EU food contact regulations. | |
| aqueous emulsion systems. incorporation into let-down | VOC-free silicone defoamer on the basis of an emulsion for aqueous emulsion adhesives, and paper coatings. Preferred incorporation into let-down. Easy to incorporate. Compliant with FDA and/or EU food contact regulations. | |
| All-purpose defoamer, easy to incorporate | VOC-free silicone-containing defoamer for aqueous dispersion adhesives. Compatible defoamer. All-purpose and easy to incorporate. Compliant with FDA and/or EU food contact regulations. | |
| APEO-free. Contains silicone | VOC-free defoamer on the basis of mineral oil for aqueous emulsion systems. APEO-free. Contains silicone. Compliant with FDA and/or EU food contact regulations. | |
| solvent-borne and solvent-free systems | Silicone-free defoamer on polymer-basis for solvent-borne and solvent-free systems. Standard defoamer for many different applications. Compliant with FDA and/or EU food contact regulations. | |
| All-purpose for long-term stability in cold and hot storage | VOC-free silicone-containing defoamer for aqueous wood, architectural and industrial coatings and adhesives. Extremely all-purpose. The finished coating has outstanding long-term stability in cold and hot storage. Easy to incorporate. Suitable for clear coatings, pigmented systems and all common types of application. Compliant with FDA and/or EU food contact regulations. | |
| Mineral oil all-purpose. rapid deaeration and good persistence | Mineral oil based, excellent general purpose defoamer for water based coatings. It can be added during grind or letdown phase.Product imparts rapid deaeration and good persistence |
Market Solutions
AEROPEC is a producer of high quality defoamers according to EU and US regulatory and environmental requirements.
AEROPEC Incorporation (‘AEROPEC’) is a young company. It has grown to become a leading defoamer producer with annual sales in 2014 of over 2.5 million KGS worldwide.