2025, Vol. 13, Issue 4, Part A

Water suffers from severe pollution, especially in the southern regions of Iraq, and high salt concentrations, which negatively affected plant growth and consequently deteriorated agricultural production. As a way to sustain the environment and reduce these salt levels, and then purify the water with materials or filters. that do not affect the environment and are low-cost, and reuse this water for irrigation. A laboratory experiment was conducted to study the efficiency of some aquatic plants and agricultural waste. In reducing the electrical conductivity values and some chemical properties of water passing through filters, which are papyrus, Ceratophyllum, and rice husk ash. Mixing filters with the following combinations: (papyrus + rice husk ash) and (papyrus + Ceratophyllum) (rice husk ash + champagne) and (papyrus + rice husk ash + champagne) {and in an equal volume ratio (1:1) for each of the drain water (200 ml). As for the filter, (200 cm³) was used in the case of a single filter alone, and (100 cm³) for each filter in the case of a combination of two filters, and (75 cm³) for each filter in the case of a combination of three filters, so the ratio here is (225 cm³ filter: 225 ml water). The water for the experiment was collected from the site of the general drain in Dhi Qar. This water was passed through the filters used in the experiment, and the filtered water was collected directly from the filter in plastic containers. Then the reduction efficiency was calculated. Reducing efficiency for both positive and negative ions and electrical conductivity. The results showed a difference in the reduction efficiency of electrical conductivity and the studied ions for the filters, but it can be noted that the papyrus filter is superior in its efficiency to all filters. The filters took the following order in terms of reduction efficiency: (Papyrus) > (Rice husk ash) > (Papyrus + Rice husk ash + Ceratophyllum). The highest efficiency in reducing cations and inions from the general drain water was according to the following order: