[01] Masoud Nazari, Department of Chemical Engineering, Sirjan Branch, Islamic Azad University, Sirjan, Iran. [02] Farshad Farahbod, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran. [03] Ramin Shamsi, Department of Chemical Engineering, Sirjan Branch, Islamic Azad University, Sirjan, Iran.

The drilling fluid is used in the upstream industries. Drilling fluid has basic roles in the heat transfer and transfer of cutting to the earth surface. The water based drilling fluid has minimum effect on the ecosystem shocks. The cutting of water based drilling fluid drained in the open and closed lagoons. This discharge can threat the sea and dry ecosystem. The treatment of cuttings of water based drilling fluid is studied in this paper. Tin oxide and Titanium oxide are used as nano coagulant in this research. The experiments were conducted to measure the important parameters in quality of treatment by addition of four different amounts of nano two metal oxides 1, 1.5, 2 and 2.5 gr. Experimental results show, the power of coagulant in elimination of component which makes turbidity. In addition, the increase from 1 gr to 2.5 gr of coagulant decreases this fraction from 0.19 to 0.14.

Pre-treatment Reactor, Sea Ecosystem, Softening Process, Water Base Cutting Treatment, Nano Coagulants

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