USE OF NATURAL ZEOLITES (KLINOPTILOLIT) IN WATER SOFTENING PROCESS

Abstract

In this work, the potential for the elimination of hardness of the water by using zeolitic tuff (klinoptilolit) obtained from the upper layer tuff of Balıkesir-Bigadiç, where the richest deposits are located in our country, has been investigated; as a means of water supply, daily usage water of campus, Selçuk University, was utilized to wich none of the pre-refining process was applied apart from chloring. At first, zeolite samples of -0.85+0.60 mm were regenerated by NaOH and the change in the hardness of water passing through zeolitic bad in ion exchange column at a constant rate was abserved. After optimizing the regeneration conditions in this way, the effect of the velocity of water fed into zeolitic bad and the water left in the column on the elimination of water hardness were also searched. As a result, the lowest value of water hardness was obtained by taking the water feeding rates at 10 ml/sec. and using zeolite regenerated with 0.75 M NaOH. Additionally, it was seen that the highest working capacity will be reached under these circumstances.

Keywords

• Doğal zeolit, Kullanım suyu, Su sertliği giderme, Rejenerasyon