STOPUP. WP3. Technological pollution control and risk mitigation measures. Task3.1. Subtask3.1.3 Integration of constructed wetlands with low cost and locally available materials for the treatment of stormwater runoff/sewage overflow in the Sebkha Sijoumi catchment

This data set includes the data produced by ISSBAT in the framework of STOPUP regarding the development and optimization of nature-based technologies focusing on constructed wetlands (CW) for the treatment of stormwater runoff/sewage overflow in the Sebkha Sijoumi Catchment. Two types of data are generated: experimental data, produced in the ISSBAT laboratories and at the case study site and performance indicators, calculated on the basis of the experimental data. CWs, filled with gravel filters, were designed, implemented and tested under different operating conditions at Sebkha Sijoumi site. CWs systems were assessed by monitoring pH, EC, DO, COD, ammonia, nitrate, phosphorous, turbidity and fecal indicator bacteria. The developed pilot plant includes a pre-treatment step consisting of a primary settling tank (R1), which is supplied with stormwater runoff/sewage overflow via a feeding pump. The pretreated water (from R1) was directed to a two-stage hybrid constructed wetland (CW), consisting of a subsurface vertical flow constructed wetland (VFCW) (R2), followed by a subsurface horizontal flow constructed wetland (HFCW) (R4). Water samples were periodically collected from the inlet (settling tank) and the outlets of each stage of the pilot plant: (i) after the VFCW stage (SP-R2) and (ii) after the HFCW stage (SP-R4), for analysis.