TY - JOUR ID - TI - NUMERICAL MODELING OF HORIZONTAL SUBSURFACE FLOW CONSTRUCTED WETLAND SYSTEM AU - Azraa M. Ajell AU - Wisam S. Al-Rekabi AU - Zuhal A. Hamza PY - 2021 VL - 12 IS - 2 SP - 13 EP - 27 JO - KUFA JOURNAL OF ENGINEERING مجلة الكوفة الهندسية SN - 20715528 25230018 AB - This is the first study looking at the wastewater treatment system created at Basrah University,Iraq. This study aims to investigate the effectiveness of horizontal subsurface flow (HSSF)constructed wetland (CW) system for treating municipal wastewater, and to understand theinner processes presented in the wetland to distinguish and define the function of eachcomponent of the treatment and to create wastewater treatment built using MATLABprogramming language to represent the biochemical phenomena systems similar to thetreatment system and implement them throughout Iraq. To do this, a mathematical model basedon one dimensional constructed wetland model number 1 (CWM1) matrix and the optimumCWs operational parameters was occurring in the CWs. The CWM1 was used to simulateprocesses in horizontal subsurface flow (HSSF) constructed wetlands. Results of the simulationhad a very good fit to measured NH4-N as well as a good fit to measured chemical oxygendemand (COD) concentration after changing the values of the concentration autotrophicnitrifying bacteria (XA) and acetotrophic methanogenic bacteria (XAMB).

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