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Besides the most common uses of antimony metal and / or compounds, with the development of solar energy technologies, the need for antimony and its compounds increases and the rapid depletion of primary sources in the world increases the importance of antimony recovery from secondary sources. The recovery method proposed in this study aims to reduce the ionic antimony by oxidation of the more active metal and to produce metallic antimony in powder form as a result of reduction process. Oxide based antimony containing ore has been treated by acidic solutions. But as the recovery rate was too low, the parameters affecting the metallic precipitation of antimony from acidic synthetic antimony solutions which are a secondary source were examined in detail. The physical and chemical properties of antimony metal were determined after examining reaction time, temperature, initial antimony concentration, zinc powder amount and solution pH parameters during cementation process which could affect experimental working conditions. As a result of the experimental studies, using 25 mL of 1000 ppm Sb3(+) synthetic solution with the addition of 100 mg of metallic zinc and mixing speed of 60 rpm, recovery efficiency of up to 100% was achieved in a noticeably short time such as 5 minutes and metallic antimony of 99% purity was obtained. When 100% recovery was achieved with zinc of 100 mg in single-stage cementation, the same yield was achieved with the addition of 40% less zinc in two-stage cementation.

ÖZETZEYT NYAĞI ŞLETMELER Ç N ATIK SUDEĞERLEND RME S STEM N N GEL ŞT R LMESZeytinyağı, olgunluğa ulaşmış zeytin meyvelerinden presle ve santrifüjle eldeedilen yemeklik bir yağdır. Zeytinyağının elde edilmesindeki teknolojik gelişmelereparalel olarak, bu ürünle birlikte ortaya çıkan katı ve sıvı atıkların miktarında daartışlar olmaktadır. Özellikle sıvı atıklar arıtılması zor olan önemli çevrekirleticileridirler. Zeytinciliğin yaygın olduğu bölgelerde yoğunlaşan bu kirleticilerinortadan kaldırılmasına yönelik olarak değişik yöntemler önerilmektedir.Bu çalışmada termal yöntemler kullanılarak işletme içerisinde atık sularınkoyulaştırılıp, kütlesinin azaltılması esasına dayanan kapalı çevrimli bir sisteminteknik ve ekonomik olarak yapılabilirliliğinin ortaya konması amaçlanmıştır. Buamaçla enerji gereksinimini büyük oranda kendi çıktıları ile sağlayan model bir tesisgeliştirilerek, vakum altında atık suyun koyulaştırılmasına ilişkin teknik kriterlerbelirlenmiştir.Anahtar Kelimeler: Zeytinyağı, atık su, vakum uygulaması, çevre kirliliği ABSTRACTDEVELOPMENT OF THE WASTEWATER-TREATMENTSYSTEM FOR OLIVE OIL MILLSOlive-oil is an edible oil which is obtained from ripe olive fruits by press andcentrifugal. Parallel to the developments in olive-oil technology the amount of liquidand solid wastes have increased. Specially liquid wastes are important environmentalpolluters. In the regions where olive-dealers are intensive different methods arerecommended to do away with this environmental polluter.In this study it is aimed to put forward the technical and economical feasibiliyof the system which concentrates wastewater and decreases its mass in a closed cyclewith thermal methods in the plant. According to this aim the technical criterions of amodel foundation which concentrates wastewater under vacuum and ensures most ofits energy requirements.Keywords: Olive-oil, waste-water, vacuum application, environmental pollution 73