Alum or Aluminum Sulfate Sulfate (Al2(SO4)3) is a chemical marketed by S².QualityProduct purity meets the most stringent standards of AWWA and of EU authorities and is authorized for the use of drinking water treatment.The product is KosherThe specifications of each batch are controlled by an authorized laboratory.AdvantagesS² developed a process of manufacturing it using recycling technology. Alum is a liquid containing around 4% Al. It can be readily used for waste water treatment.Alum is used as an acidic coagulant in combination with Sodium and Potassium Aluminate to maintain a controlled pH level of the treated waste water.DisadvantagesIt is more expensive than Sodium Aluminate unless recycled product is usedAcidic coagulant could reduce the pH below 6 and cause odor problems. It has then to be used with caustic soda pH correction 

Potassium Aluminate (KAlO2) is a chemical, manufactured by S² in Israel. QualityProduct purity meets the most stringent standards of AWWA and of EU authorities.The specifications of each batch are controlled by an authorized laboratory.AdvantagesReplaces Sodium Aluminate for applications in regions with Sodium sensitivity.Potassium Aluminate is a basic coagulant (pH > 13.5). Therefore its use, in the case of acidic wastewaters, lowers the cost of the treatment compared to the use of other coagulant requiring pH correction with KOH.Liquid coagulant having the highest concentration of active element on the market. The aluminum content is 11-12%.Heavy metals removal using Sodium Aluminate occurs at pH = 6-7 whereas with other existing chemical treatments, pH should be at least 10.DisadvantagesThe use of Potassium ions makes the product expensive 

 S² has been collecting waste brines from the Israeli Aluminum processing industry since 2001, in order to produce valuable chemicals used for waste water treatment and other applications.Brines removed from Aluminum plants are transported to a central processing unit. They are used for Sodium Aluminate production. Products' quality meets the standards of use for potable water. The recycled products are currently used for industrial and municipal wastewater treatment.This operation highly valued by the Israeli Ministry of Environmental Protection is performed as a purely commercial activity. No commercial advantages have been requested for the use of recycled materialThere are three types of Aluminum processing factories:Aluminum extrusion plants waste S² removes basic waste solution from extrusion processes to produce Sodium Aluminate. Recycled Sodium Aluminate is the cheapest coagulant sold in Israel. As a result it allows reducing the cost of wastewater treatment. In 2008, S² has recycled 90% of the available brine in Israel.Aluminum milling waste solutions Waste caustic soda solutions from the aircraft industry contain impurities that impose their burial or combustion at a hazardous waste disposal facility (e.g. Ramat Hovav in Israel). S² has developed a process which enables recycling most of these wastes into Sodium Aluminate, thereby reducing the quantity of waste removed to the waste disposal facility.Anodizer wastewater treatment S² has developed a novel technology for the treatment of aluminum anodization wastewaters. The technology proposed by S² enables:The removal of concentrated acidic and basic solutions from Anodization plants.The reduction of water consumption up to 75%.The reduction of treated wastewater flow to sewage system.The reduction of the amounts of salts (Na+, SO4--) discarded to the sewage system.The reduction of solid wastes produced by the neutralizing process.The reduction of the wastewater treatment in the plant to a minimum.The concentrated brines removed from the anodization plants will be recycled by S². The recycled Sodium Aluminate and Aluminum Sulfate will be used for waterwater treatment. 

Sodium Aluminate(NaAlO2) is a chemical, manufactured by S² in Israel using a unique recycling process.QualityProduct specifications meets the standards of AWWA and of EU authorities.The specifications of each batch are controlled by an authorized laboratory.AdvantagesLiquid coagulant having the highest concentration of active element on the market. The aluminum content is 11-12%.Cheapest coagulant (based on concentration of active element).Availability of the product assured (local supply).Sodium Aluminate is a basic coagulant (pH > 13.5). Therefore its use, in the case of acidic wastewaters, lowers the cost of the treatment and limits the salinity of the wastewaterHeavy metals removal using Sodium Aluminate occurs at pH = 6-7 whereas with other existing chemical treatments, pH should be at least 10.The use of Sodium Aluminate and Alum for coagulation, combined with pH control, lowers the cost of treatment and limits the wastewater salinity.Main UsesThe product is widely used as coagulant in chemical treatment of urban & industrial wastewater. It could also be used for the treatment of drinking water and the pretreatment of seawater for desalination.Additional Uses Pulp and paper industries: retention filler, anionic trash collector, sizingCement additive for setting accelerationPigment coating for paintsManufacture of catalystsProduction of Zeolites (detergents)