{"product_id":"cwareddaem","title":"Economic Diffusion Dialysis Anion-Exchange Membrane for Waste Acid Recovery, CWAREDDAEM","description":"\u003cp\u003eDiffusion dialysis (DD) using specialized anion-exchange membranes (AEMs) is a green, energy-saving membrane separation technology widely used to recover free acids (such as HCl, H2SO4, HNO3, or HF) from industrial waste streams while rejecting dissolved heavy metal salts. Unlike electrodialysis, which requires an external direct-current (DC) power source, diffusion dialysis is driven entirely by a concentration gradient, making it a zero-power-input process for fluid separation\u003c\/p\u003e\n\u003cp\u003eTo excel in waste acid recovery, diffusion dialysis membranes must possess specific physicochemical properties: (1) \u003cstrong\u003eHigh Acid Dialysis Coefficient (U)\u003c\/strong\u003e: Measures how fast the acid permeates the membrane. High permeability ensures a compact stack footprint and high processing capacity. (2) \u003cstrong\u003eHigh Separation Factor (S)\u003c\/strong\u003e: The ratio of acid permeability to salt permeability. A high separation factor ensures minimal metal leakage into the recovered acid product. (3) \u003cstrong\u003eStrong Acid and Oxidation Resistance\u003c\/strong\u003e: Because feed solutions often contain aggressive mineral acids and oxidizing agents, the polymer backbone (typically fluorinated polymers like PVDF-based backbones or highly cross-linked polystyrene\/polyethylene matrices) must resist chemical degradation over long operating cycles. (4) \u003cstrong\u003eLow Swelling Ratio\u003c\/strong\u003e: Maintains dimensional stability when exposed to drastic concentration shifts between strong acid feeds and water.\u003c\/p\u003e\n\u003ctable style=\"width: 100.071%; height: 608.2px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCWAREDDAEM (C-WAR-EDDAEM)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 250.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 250.6px;\"\u003e\u003cem\u003eWorking Mechanism\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 250.6px;\"\u003e\n\u003cp\u003eThe whole diffusion dialysis is consisted of a series of dialysis and diffusion chambers that was separated by an anion exchange membrane. The waste acid solution and receiving solution (eg: tap water) was fed into chambers and the anions (also bring protons) from the waste acid will go through the membrane and enter into the tap water to complete the acid recovery.  \u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CWAREDDAEM_mechanism_160x160.jpg?v=1789545656\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003eMembrane Thickness (Dry)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e~0.12 um\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 17.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 17.6px;\"\u003e\u003cem\u003eDialysis Constant\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 17.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;5*10^-7 m\/s\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003eH+\/Fe2+ Separation Factor \u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e\u0026gt;15\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003eWater Content\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e\u0026gt;30%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003eOperation Temperature\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e≤50°C\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003ePenetration Strength\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt; 5 N\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.767%; height: 35.6px;\"\u003e\u003cem\u003ePackage Grade\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0192%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eL10-40cm*W10-40cm\/pcs\/pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eReference: \u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1383586625039152\"\u003eN. Ul Afsar, et al., Tailored crosslinked anion exchange membranes with hydrophilic channels for acid recovery via diffusion dialysis process, Separation and Purification Technology, 2026, 381, 135318\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.mdpi.com\/2077-0375\/10\/8\/169\"\u003eC. Zhang, et al., Diffusion Dialysis for Acid Recovery from Acidic Waste Solutions: Anion Exchange Membranes and Technology Integration, Membranes 2020, 10(8), 169\u003c\/a\u003e \u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MYKJ","offers":[{"title":"10cm * 10cm","offer_id":48379251720422,"sku":"CWAREDDAEM1010","price":49.0,"currency_code":"USD","in_stock":true},{"title":"20cm * 20cm","offer_id":48379251753190,"sku":"CWAREDDAEM2020","price":119.0,"currency_code":"USD","in_stock":true},{"title":"30cm * 30cm","offer_id":48379251785958,"sku":"CWAREDDAEM3030","price":249.0,"currency_code":"USD","in_stock":true},{"title":"40cm * 40cm","offer_id":48379251818726,"sku":"CWAREDDAEM4040","price":369.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CWAREDDAEM_main.jpg?v=1789542553","url":"https:\/\/echemsupplies.com\/products\/cwareddaem","provider":"EChem Supplies","version":"1.0","type":"link"}