ÖzBu çalışmada, atık alkali pillerden glukonik asit ve hidroklorik asit ile çinko ve mangan elementlerinin solüsyona alınabilirliği incelenmiş ve Taguchi deneysel tasarımı ile oluşturulan deney düzeneği ile sonuçlar istatiksel olarak değerlendirilmiştir. Taguchi deney tasarım şartlarına göre 3 farklı değişken ile 3 farklı konsantrasyonda (3*3) çalışılmıştır. İki farklı Taguchi deneysel tasarımı oluşturulmuştur. Birinci Taguchi deneysel tasarımında değişken olarak glukonik asit, sıcaklık, deney süresi seçilmiştir. İkinci Taguchi deneysel tasarımında ise değişken olarak glukonik asit, hidroklorik asit ve deney süresi seçilmiştir. Deneysel çalışmalar sonucunda, asit olarak sadece glukonik asitin kullanıldığı deneysel çalışmalarda, yüksek glukonik asit konsantrasyonlarında mangan gideriminin daha iyi olduğu; bununla birlikte glukonik asit ve hidroklorik asitin birlikte kullanıldığı durumlarda düşük konsantrasyonda glukonik asit ve düşük konsantrasyonlarda hidroklorik asit ile daha iyi giderimler elde edildiği görülmüştür. Tüm deneysel çalışmalarda etkili bir çinko giderimi elde edilememiştir.Anahtar Kelimeler: Çinko, Glukonik asit, Hidroklorik asit, Mangan, Taguchi yöntemi Investigation of Manganese and Zinc Removal with Gluconic Acid and Hydrochloric Acid from Waste Alkaline Batteries: Taguchi Experimental Design AbstractIn this study, the leaching of zinc and manganese from waste alkaline battery powders with gluconic acid and hydrochloric acid was investigated. The results were evaluated statistically with Taguchi experimental design. Taguchi experimental design conditions was conducted at 3 different concentrations (3*3) with 3 different variables. Two different Taguchi experimental designs were created. In the first Taguchi experimental design, gluconic acid, temperature, reaction time were chosen as variables. In the second Taguchi experimental design, gluconic acid, hydrochloric acid and reaction time were selected as variables. Experimental studies have shown that manganese removal is better at high concentrations of gluconic acid in experimental studies where only gluconic acid is used as the acid; while the lower concentration of gluconic acid and hydrochloric acid was sufficient when being used in combination. There was no effective zinc removal was achieved in all experimental runs.
A large amount of mining waste occures due to the intensive mining activities in our country. These wastes may contain different pollutants depending on the type of mining facilities. The lead-zinc-copper flotation waste was investigated in this study contains significantly calcium, iron, magnesium and sulfur elements. The presence of high concentrations of these elements has an environmental problem. For this reason, in this article, firstly, the mine waste was obtained from the Gümüştaş Mining Corporation, the Lead-Zinc-Copper Enhancement Plant. Then, characterization and iron and sulphate removal experiments were investigated under different inorganic acids. Experimental studies showed that about 30% iron and 85% sulphate removal yields were obtained with 4 M HCl concentration.
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