Study Of the Optimum Conditions for Removing Phosphate from House Water in City of Mosul Using Some Local Clays

The aim of study was removal phosphate from domestic waste water by using a different local clays and soils, waste water were collected in July and august months from five lift water stations in Mosul city (Bab Sinjar, Al-Sandooqi, Al-Hadbaa, Al-Qarazee and Al-Shurtaa), phosphate concentration average (3ppm) According to the Iraqi determinants of the quality of water suitable for the aquatic environment within the limits of (3 mg/liter), the upper value are in Bab sinjar (6.8ppm) while the lower in Al-Shurtaa (2.2ppm).Other studied on the experiments were related to analysis of materials to be adsorbed such as (Bentonit, Tulkeef and, Al-Qobah) were studied, Al-Qobah soil was more efficiency selected (quantity of soil ,concentration of phosphate ,volume of sample ,particle size and flow rate) was 2.5g, 30ppm, 40ml, 125micron and 1.5ml/min ) respectively as experiment which adsorbed efficiency reached to 98% . Thermal equilibrium of material were studied by Langmuir equation, R2 gave a good linear relationship.