Journal of Advances in Environmental Health Research

Journal of Advances in Environmental Health Research

Municipal Wastewater Treatment in Iran: Current Situation, Barriers and Future Policies

Document Type : Review Article(s)

Authors
Abbas Akbarzadeh 1
Alireza Valipour 1
Seyed Mohammad Hadi Meshkati 2
Nazanin Hamnabard 1
1 Water and Wastewater Research Center (WWRC), Water Research Institute (WRI), Shahid Abbaspour Blvd., Tehran, 16765 313, Iran
2 Department of Hydraulic Engineering and Hydro-Environmental (DHEH), Water Research Institute (WRI), Shahid Abbaspour Blvd., Tehran, 16765 313, Iran
10.34172/jaehr.2023.08
Abstract
With population and economy growth, water usage, wastewater generation and treatment, treatment plants capacity and innovation ability in Iran have increased dramatically in the last decades. Currently, Iran is in the grip of severe water scarcity, with renewable water availability of less than 1700 m3/capita/y. Total municipal wastewater generated in Iran is 4.61 billion m3/y out of which only 42% is treated. The conventional activated sludge process accounted for the largest share (> 60%) in municipal wastewater treatment in Iran. The treatment plants operational costs usually amount up to 0.2 US $/m3 wastewater. About 55% of treated municipal effluent is reused in Iran, with an emphasis on the agricultural sector. The electricity consumption in municipal wastewater treatment facilities amounts for 0.1% (241 million kWh/y) of the total electricity consumption of the country. Meanwhile, the current laws and policies are sometimes inefficient or do not prompt the ideal outcomes. Thus, the present study provides an overview of municipal wastewater treatment in Iran by describing the current situation and collecting data from 68 treatment plants, and defining key barriers and future policies needs towards Iran’s sustainable municipal wastewater management (up to 2040). Here, the opinions of 50 experts from the governmental sector, industry division, and faculty members were surveyed through the meetings of the technical and steering committee. Overall, sustainable municipal wastewater management in Iran would be obtained by developing water resources, increasing the population covered by wastewater facilities (90%), improving effluent discharge standards, and lowering energy usage to 0.45 kWh/m3 wastewater.
Keywords
Water resource
Municipal wastewater treatment
Sludge
Energy
Reuse
Policy

Subjects

  1. Emadodin I, Reinsch T, Taube F. Drought and desertification in Iran. Hydrology. 2019;6(3):66. doi: 3390/hydrology6030066.
  2. Karami S. Re-analyzing of consequences and methods of climatological changes managements (case study: Iran’s central basin). J Appl Res Geogr Sci. 2021;20(59):19-37. doi: 29252/jgs.20.59.19. [Persian].
  3. Karimian S, Chamani A, Shams M. Evaluation of heavy metal pollution in the Zayandeh-Rud River as the only permanent river in the central plateau of Iran. Environ Monit Assess. 2020;192(5):316. doi: 1007/s10661-020-8183-8.
  4. Kesari KK, Soni R, Jamal QMS, Tripathi P, Lal JA, Jha NK, et al. Wastewater treatment and reuse: a review of its applications and health implications. Water Air Soil Pollut. 2021;232(5):208. doi: 1007/s11270-021-05154-8.
  5. Valipour A, Kalyan Raman V, Ghole VS. A new approach in wetland systems for domestic wastewater treatment using Phragmites sp. Ecol Eng. 2009;35(12):1797-803. doi: 1016/j.ecoleng.2009.08.004.
  6. UN-Water. UN-Water Analytical Brief on Unconventional Water Resources. Geneva, Switzerland: UN-Water; 2020. https://www.unwater.org/app/uploads/2020/08/UN-Water-Analytical-Brief-on-Unconventional-Water-Resources.pdf.
  7. Gorjian S, Ghobadian B. Solar desalination: a sustainable solution to water crisis in Iran. Renew Sustain Energy Rev. 2015;48:571-84. doi: 1016/j.rser.2015.04.009.
  8. Saqeravanian S, Ahmadnia S. Study the feasibility of investment on hybrid power plants for remote areas. Majlesi Journal of Energy Management. 2017;6(1):9-14. [Persian].
  9. Vaghefi SA, Keykhai M, Jahanbakhshi F, Sheikholeslami J, Ahmadi A, Yang H, et al. The future of extreme climate in Iran. Sci Rep. 2019;9(1):1464. doi: 1038/s41598-018-38071-8.
  10. Statistical Center of Iran (SCI). Data and Statistical Information. 2021. Available from: http://www.amar.org.ir/. Accessed April 12, 2021.
  11. National Water and Wastewater Engineering Company (NWWEC). Urban and Rural Statistical Yearbooks of Water and Wastewater Industry. 2021. Available from: https://www.nww.ir/. Accessed June 16, 2021.
  12. SIN-MoE (Statistics and Information Network of the Ministry of Energy). Urban Water and Wastewater Industry Report in the Year 2012. 2021. Available from: https://isn.moe.gov.ir/. Accessed June 16, 2021.
  13. SIN-MoE (Statistics and Information Network of the Ministry of Energy). Rural Water and Wastewater Industry Report in the Year 2012. 2021. Available from: https://isn.moe.gov.ir/. Accessed June 16, 2021.
  14. SIN-MoE (Statistics and Information Network of the Ministry of Energy). Summarizing the Plans of Regional Water Companies Regarding the Reuse of Effluent in 2013. 2021. Available from: https://isn.moe.gov.ir/. Accessed June 16, 2021.
  15. Iran’s Environmental Protection Organization (IEPO). Wastewater. 2021. Available from: https://wsm.doe.ir/portal/home/. Accessed June 14, 2021.
  16. Food and Agriculture Organization (FAO). AQUASTAT Database. 2021. Available from: http://www.fao.org/aquastat/statistics/query/index.html. Accessed April 12, 2021.
  17. Mohammad Ghasemi M, Naroui Rad MR, Ghasemi A, Koohkan SH. Evaluation of water resources management of Hirmand river basin for agricultural productions using stochastic dynamic programming. Adv Plants Agric Res. 2019;9(1):14-7. doi: 15406/apar.2019.09.00404.
  18. Eftekhari M, Ghezel Sofloo A, Akbari M. Application of Numerical and Mathematical Models in Groundwater. Birjand, Iran: National Symposium of Baladeh Ferdows Aqueduct; 2019. [Persian]. https://civilica.com/doc/1015406/.
  19. Ashraf S, Nazemi A, AghaKouchak A. Anthropogenic drought dominates groundwater depletion in Iran. Sci Rep. 2021;11(1):9135. doi: 1038/s41598-021-88522-y.
  20. Hamdi Ahmadabad Y, Liaghat A, Rasoulzadeh A, Ghaderpour R. Investigation of in the capita water consumption variation in Iran based on the past two-deca diet. Iran J Soil Water Res. 2019;50(1):77-87. doi: 22059/ijswr.2018.246084.667795. [Persian].
  21. Ghadami H, Taheri AH. A Review of the Desalination Process of Saline and Brackish Waters as an Alternative Method of Water Supply Considering Environmental Considerations. Karaj, Iran: 1st Conference on Engineering Opportunities and Challenges of Alborz Province; 2019. [Persian]. https://civilica.com/doc/853238/.
  22. Mokhtari Hashi H. Hydropolitics of Iran; the geography of water crisis in the horizon of 2025. Geopolitical Quarterly. 2013;9(3):49-83. [Persian].
  23. Agricultural Technical and Engineering Research Institute. Improving Water Consumption Efficiency. Tehran, Iran: Agricultural Research, Education and Extension Organization; 2015. [Persian]. https://www.areeo.ac.ir/_DouranPortal/Documents/waterconsume_20151227_150235.pdf.
  24. Homai M, Asadi Kapourchal S, Eskandari M, Hassan Oghli A, Liaqat AM. Guide to the Use and Management of Agricultural Drainage, No 432-A. Tehran, Iran: Deputy of Water and Wastewater Affairs, Ministry of Energy; 2015. [Persian]. https://shaghool.ir/Files/432-a.pdf.
  25. Mohammadjani A, Yazdanian N. Analysis of the water crisis in the country and its management requirements. Ravand. 2014;21(65-66):117-44. [Persian].
  26. Altin S, Altin A, Doğru S. Investigation of operating costs at an urban wastewater treatment plant. Turk Bull Hyg Exp Biol. 2020;77(4):49-56. doi: 5505/TurkHijyen.2020.74875.
  27. Davoudinejad M, Biparva P, Akbarpour Tolooti A. Estimation of production potential of biogas and electricity from municipal Sewage sludge in the Iran. Water Reuse. 2015;2(1):41-8. [Persian].
  28. Farzadkia M, Bazrafshan E. Lime stabilization of waste activated sludge. Health Scope. 2014;3(1):e16035. doi: 17795/jhealthscope-16035.
  29. Rulkens WH. Sustainable sludge management-what are the challenges for the future? Water Sci Technol. 2004;49(10):11-9. doi: 2166/wst.2004.0597.
  30. Foladori P, Andreottola G, Ziglio G. Sludge Reduction Technologies in Wastewater Treatment Plants. London, UK: IWA Publishing; 2010. doi: 2166/9781780401706.
  31. Herwijn AJ. Fundamental Aspects of Sludge Characterization [thesis]. Eindhoven, Netherlands: Technische Universiteit Eindhoven; 1996.
  32. Christoforidou P, Bariamis G, Iosifidou M, Nikolaidou E, Samaras P. Energy benchmarking and optimization of wastewater treatment plants in Greece. Environ Sci Proc. 2020;2(1):36. doi: 3390/environsciproc2020002036.
  33. Maktabifard M, Zaborowska E, Makinia J. Achieving energy neutrality in wastewater treatment plants through energy savings and enhancing renewable energy production. Rev Environ Sci Biotechnol. 2018;17(4):655-89. doi: 1007/s11157-018-9478-x.
  34. Chae KJ, Kang J. Estimating the energy independence of a municipal wastewater treatment plant incorporating green energy resources. Energy Convers Manag. 2013;75:664-72. doi: 1016/j.enconman.2013.08.028.
  35. Wang H, Yang Y, Keller AA, Li X, Feng S, Dong YN, et al. Comparative analysis of energy intensity and carbon emissions in wastewater treatment in USA, Germany, China and South Africa. Appl Energy. 2016;184:873-81. doi: 1016/j.apenergy.2016.07.061.
  36. Gu Y, Dong Y-n, Wang H, Keller A, Xu J, Chiramba T, et al. Quantification of the water, energy and carbon footprints of wastewater treatment plants in China considering a water–energy nexus perspective. Ecol Indic. 2016;60:402-9. doi: 1016/j.ecolind.2015.07.012.
  37. Fattahi R, Noorollahi Y. Energy management system for a wastewater treatment plant: case of activated sludge bioreactors. Iranian Journal of Energy. 2020;23(1):7-23. [Persian].
  38. Nayeb H, Mirabi M, Motiee H, Alighardashi A, Khoshgard A. Estimating greenhouse gas emissions from Iran’s domestic wastewater sector and modeling the emission scenarios by 2030. J Clean Prod. 2019;236:117673. doi: 1016/j.jclepro.2019.117673.
  39. Capodaglio AG, Olsson G. Energy issues in sustainable urban wastewater management: use, demand reduction and recovery in the urban water cycle. Sustainability. 2019;12(1):266. doi: 3390/su12010266.
  40. Zhang M, Ma Y. Energy use and challenges in current wastewater treatment plants. In: Liu Y, Gu J, Zhang M, eds. AB Processes: Towards Energy Self-Sufficient Municipal Wastewater Treatment. London, UK: IWA Publishing; 2020. p. 1-24.
  41. Siadat H, Shafiee Far M, Shaiate K, Abbasi H, Azimi A, Yargholi B. Environmental Criteria for the Reuse of Returned-Waters and Effluents, No 535. Tehran, Iran: Deputy of Strategic Planning and Supervision of Presidential; 2010. [Persian]. https://health.umsu.ac.ir/uploads/effluent_reuse.pdf.
  42. Dalahmeh S, Baresel C. Reclaimed Wastewater Use Alternatives and Quality Standards: From Global to Country Perspective: Spain Versus Abu Dhabi Emirate. Stockholm, Sweden: IVL Swedish Environmental Research Institute; 2014. https://www.ivl.se/download/18.343dc99d14e8bb0f58b76f5/1449742331280/C24.pdf.
  43. Lu X, Zhou B, Vogt RD, Seip HM, Xin Z, Ekengren Ö. Rethinking China’s water policy: the worst water quality despite the most stringent standards. Water Int. 2016;41(7):1044-8. doi: 1080/02508060.2016.1219188.
  44. Preisner M, Neverova-Dziopak E, Kowalewski Z. An analytical review of different approaches to wastewater discharge standards with particular emphasis on nutrients. Environ Manage. 2020;66(4):694-708. doi: 1007/s00267-020-01344-y.
  45. Maghsoudlou Kamali B., Ghaneian MT, Abdullahi T. Comparison of the Quality of Pollutants in the Effluent of Ardabil Municipal Wastewater Treatment Plant with Environmental Standards. Tehran, Iran: 1st National Conference and Specialized Exhibition of Environment, Energy and Clean Industry; 2013. [Persian]. https://civilica.com/doc/231053/.
  46. Baradaran Amini S, Baraktin S. Environmental Studies on the Reuse of Wastewater from Tabriz Wastewater Treatment Plant in Agriculture. Mashhad, Iran: 2nd National Seminar on the Status of Recycled Water and Wastewater in Water Resources Management; 2010. [Persian]. https://civilica.com/doc/103525/.
  47. Alikhassi M. Qualitative Evaluation of Wastewater of Bandar-e Abbas Treatment Plant for Use in Green Space. Tehran, Iran: 2nd National Conference on Agriculture and Sustainable Natural Resources; 2014. [Persian]. https://civilica.com/doc/309832/.
  48. Rezaei MS. Evaluation of the Effect of Upgrading Wastewater Treatment Systems from Stabilization Pond to Aeration Lagoon Method in Full-Scale Municipal Wastewater Treatment (Sepahan Shahr). Tehran, Iran: 8th National Conference on Sustainable Development in Civil Engineering; 2021. [Persian]. https://civilica.com/doc/1240166/.
  49. Goodarzi B, Jafari K, Amiri F, Yazdani A. Evaluation of Effluent Quality of Kerchgan Rural Wastewater Treatment Plant in Lenjan City, Isfahan Province. Isfahan, Iran: 2nd Iranian Congress of Water and Wastewater Science and Engineering; 2018. [Persian]. https://civilica.com/doc/856109/.
  50. Mordian M, Khosravi A, Mashhadi M, Mashhadi J, Varvani J. Investigation of the Quality of Arak Urban Wastewater for Use in Agriculture. Arak, Iran: 1st National Conference on Sustainable Ecology and Development; 2014. [Persian]. https://civilica.com/doc/256786/.
  51. Rahmatiyar H, Rahmanpour Salmani E, Alipour MR, Alidadi H. Wastewater treatment efficiency in stabilization ponds, Olang treatment plant, Mashhad, 2011-13. Iran J Health Saf Environ. 2015;2(1):217-23. [Persian].
  52. Zarei Mahmoudabadi t, Behnejad B, Pasdar P, Amooee S, Behnejad B. Evaluate the performance wastewater treatment plant of Ardakan and the feasibility of reuse of output effluent for various uses. J Res Environ Health. 2020;6(2):134-44. doi: 22038/jreh.2020.43484.1327. [Persian].
  53. Hosomi M. New challenges on wastewater treatment. Clean Technol Environ Policy. 2016;18(3):627-8. doi: 1007/s10098-016-1131-1.
  54. Kim I, Hong SH, Jung JY. Establishment of effluent standards for industrial wastewaters in Korea: current issues and suggestions for future plan. J Water Environ Technol. 2010;8(3):151-65. doi: 2965/jwet.2010.151.
Journal of Advances in Environmental Health Research
Volume 11, Issue 1
Winter 2023
Pages 60-71