{"product_id":"kinetics-and-ecotoxicology-of-arsenic-adsorption-using-zeolite-4a-von-ketlyn-vollmann","title":"Kinetics and Ecotoxicology of Arsenic Adsorption Using Zeolite 4A","description":"\u003cp\u003eThis study proposed the use of kaolin from Juazeirinho, in the state of Paraíba, as a source of aluminium and silicon for the production of zeolite 4A from a hydrothermal reaction, where the synthesis procedure consisted of the thermal activation of the kaolin, which was subjected in a mulfla to a temperature of 850°C for 2 hours to become metakaolin; 3g of this metakaolin obtained was added to a Teflon\/aluminium container along with 30mL of a 1.25 mols\/L NaOH solution, and this system was placed in an oven at 150°C for 4 hours at autogenous pressure for the hydrothermal reaction to form zeolite 4A. The resulting material was centrifuged and washed with deionised water to a pH close to 7.0, and then dried in an oven at 100°C for approximately 15 hours. The XRD results showed that the kaolin from Juazeirinho consists mainly of kaolinite. The data from the removal tests determined by ICP-OES suggest that zeolite 4A has good adsorption capacity. The results showed that the Langmuir model is more appropriate than the Freundlich model for fitting the experimental data.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9786206647638\"\u003e\u003ch3\u003eStudy of Arsenic Removal from Aqueous Solutions Using Zeolite 4A Synthesised from Kaolin\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9786206647638","offer_id":47278901690693,"sku":"9786206647638","price":54.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/67fc2bf1-954f-49cb-ad5a-102e04d4a54b.jpg?v=1750137640","url":"https:\/\/shop.autorenwelt.de\/en\/products\/kinetics-and-ecotoxicology-of-arsenic-adsorption-using-zeolite-4a-von-ketlyn-vollmann","provider":"Autorenwelt Shop","version":"1.0","type":"link"}