**Abstract**

[110] Wojnárovits L, Takács E. Irradiation treatment of azo dye containing wastewater: An overview. Rad. Phys. Chem. 2008;75:225-244. DOI: 10.1016/j.radphyschem.

[111] Illés E, Takács E, Dombi A, Gajda-Schrantz K, Gonter K, Wojnárovits L. Radiation in‐ duced degradation of ketoprofen in dilute aqueous solution. Rad. Phys. Chem.

[112] Chamam M, Földváry MCs, Hosseini AM, Tungler A, Takács E, Wojnárovits L. Min‐ eralization of aqueous phenolate solutions: A combination of irradiation treatment and wet oxidation. Rad. Phys. Chem. 2012;81;1484-1488. DOI: 10.1016/j.radphyschem.

[113] Tang W, Zeng X, Zhao J,Gu G, Li Y, Ni Y. The study on the wet air oxidation of high‐ ly concentrated emulsified wastewater and its kinetics. Sep. Purif. Technol.

2012;81:1479-1483. DOI: 10.1016/j.radphyschem.2011.11.038.

2003;31:77-82. DOI: 10.1016/S1383-5866(02)00161-2.

2007.05.003.

178 Wastewater Treatment Engineering

2011.11.013.

The development of a reliable decision support system and predictions for water quantity and quality often require a reasonable level of environmental and hydro‐ logical simulations at various geographic scales. The Soil and Water Assessment Tool (SWAT) model offers distributed parameter and continuous time simulation, and flexible watershed configuration and with the adoption of geographic information system (GIS) technology, a user-friendly and interactive decision support system can be developed for wastewater management. In this chapter, we evaluated the spatiotemporal evolution of wastewater contaminants in an environmentally degraded watershed through integrated field-based investigations and modeling approach. Later, management options were identified to improve the watershed health and agro-environment. The results of the modeling study exhibited variable responses of surface runoff and water quality to different scenarios of land use change. Temporal wastewater analysis indicated a significant impact of seasonality on the contaminants' population levels. The adopted approach would prove effective in evaluating better management options to reduce negative impacts of wastewater and contaminants for sustainable agro-environment in future.

**Keywords:** Wastewater modeling, land use scenarios, water policy

© 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
