Current status of municipal wastewater treatment plants in North-east China: implications for reforming and upgrading

Abstract

● The performance and costs of 20 municipal WWTPs were analyzed.

● Effluent COD and NH₄⁺-N effluent exceed the limits more frequently in winter.

● Nitrification and refractory pollutant removal are limited at low temperatures.

● To meet the national standards, electricity cost must increase by > 42% in winter.

● Anammox, granular sludge, and aerobic denitrification are promising technologies.

Climate affects the natural landscape, the economic productivity of societies, and the lifestyles of its inhabitants. It also influences municipal wastewater treatment. Biological processes are widely employed in municipal wastewater treatment plants (WWTPs), and the prolonged cold conditions brought by the winter months each year pose obstacles to meeting the national standards in relatively cold regions. Therefore, both a systematic analysis of existing technical bottlenecks as well as promising novel technologies are urgently needed for these cold regions. Taking North-east China as a case, this review studied and analyzed the main challenges affecting 20 municipal WWTPs. Moreover, we outlined the currently employed strategies and research issues pertaining to low temperature conditions. Low temperatures have been found to reduce the metabolism of microbes by 58% or more, thereby leading to chemical oxygen demand (COD) and NH₄⁺-N levels that have frequently exceeded the national standard during the winter months. Furthermore, the extracellular matrix tends to lead to activated sludge bulking issues. Widely employed strategies to combat these issues include increasing the aeration intensity, reflux volume, and flocculant addition; however, these strategies increase electricity consumption by > 42% in the winter months. Internationally, the processes of anaerobic ammonium oxidation (anammox), granular sludge, and aerobic denitrification have become the focus of research for overcoming low temperature. These have inspired us to review and propose directions for the further development of novel technologies suitable for cold regions, thereby overcoming the issues inherent in traditional processes that have failed to meet the presently reformed WWTP requirements.

Graphical abstract

Keywords

Low temperature / Municipal WWTPs / Cold region / Electricity consumption / Nitrogen removal

References

[1] Arévalo J , Ruiz L M , Pérez J , Gómez M A . (2014). Effect of temperature on membrane bioreactor performance working with high hydraulic and sludge retention time. Biochemical Engineering Journal, 88: 42–49

[2] Castiglioni S , Bagnati R , Fanelli R , Pomati F , Calamari D , Zuccato E . (2006). Removal of pharmaceuticals in sewage treatment plants in Italy. Environmental Science & Technology, 40(1): 357–363

[3] Chen M , Chen Y , Dong S , Lan S , Zhou H , Tan Z , Li X . (2018). Mixed nitrifying bacteria culture under different temperature dropping strategies: nitrification performance, activity, and community. Chemosphere, 195: 800–809

[4] Chen R , Takemura Y , Liu Y , Ji J , Sakuma S , Kubota K , Ma H , Li Y Y . (2019). Using partial nitrification and anammox to remove nitrogen from low-strength wastewater by co-immobilizing biofilm inside a moving bed bioreactor. ACS Sustainable Chemistry & Engineering, 7(1): 1353–1361

[5] Cui B , Yang Q , Liu X , Huang S , Yang Y , Liu Z . (2020). The effect of dissolved oxygen concentration on long-term stability of partial nitrification process. Journal of Environmental Sciences (China), 90: 343–351

[6] Cui B , Yang Q , Zhang Y , Liu X , Wu W , Li J . (2019). Improving nitrogen removal in biological aeration filter for domestic sewage treatment via adjusting microbial community structure. Bioresource Technology, 293: 122006

[7] de Kreuk M K , Pronk M , Van Loosdrecht M C . (2005). Formation of aerobic granules and conversion processes in an aerobic granular sludge reactor at moderate and low temperatures. Water Research, 39(18): 4476–4484

[8] Dhaulaniya A S , Balan B , Kumar M , Agrawal P K , Singh D K . (2019). Cold survival strategies for bacteria, recent advancement and potential industrial applications. Archives of Microbiology, 201(1): 1–16

[9] Ducey T F , Vanotti M B , Shriner A D , Szogi A A , Ellison A Q . (2010). Characterization of a microbial community capable of nitrification at cold temperature. Bioresource Technology, 101(2): 491–500

[10] Faria C , Ricci B , Silva A , Amaral M , Fonseca F . (2020). Removal of micropollutants in domestic wastewater by expanded granular sludge bed membrane bioreactor. Process Safety and Environmental Protection, 136: 223–233

[11] Fu L , Lu X , Niu K , Tan J , Chen J . (2019). Bioaccumulation and human health implications of essential and toxic metals in freshwater products of Northeast China. Science of the Total Environment, 673: 768–776

[12] Gilbert E M , Agrawal S , Karst S M , Horn H , Nielsen P H , Lackner S . (2014). Low temperature partial nitritation/anammox in a moving bed biofilm reactor treating low strength wastewater. Environmental Science & Technology, 48(15): 8784–8792

[13] Gilbert E M , Agrawal S , Schwartz T , Horn H , Lackner S . (2015). Comparing different reactor configurations for Partial Nitritation/Anammox at low temperatures. Water Research, 81: 92–100

[14] Gnida A, Felis E, Ziembinska-Buczynska A, Luczkiewicz A, Surmacz-Gorska J, Olanczuk-Neyman K (2020). Evidence of mutations conferring resistance to clarithromycin in wastewater and activated sludge. 3 Biotech, 10(1): 7

[15] Guo J , Peng Y , Wang S , Yang X , Yuan Z . (2014). Filamentous and non-filamentous bulking of activated sludge encountered under nutrients limitation or deficiency conditions. Chemical Engineering Journal, 255: 453–461

[16] Guo J , Peng Y , Wang Z , Yuan Z , Yang X , Wang S . (2012). Control filamentous bulking caused by chlorine-resistant Type 021N bacteria through adding a biocide CTAB. Water Research, 46(19): 6531–6542

[17] Hai F I, Tessmer K, Nguyen L N, Kang J, Price W E, Nghiem L D (2011). Removal of micropollutants by membrane bioreactor under temperature variation. Journal of Membrane Science, 383(1–2): 144–151

[18] Han X , Jin Y , Yu J . (2022). Rapid formation of aerobic granular sludge by bioaugmentation technology: a review. Chemical Engineering Journal, 437: 134971

[19] He Q , Wang H , Chen L , Gao S , Zhang W , Song J , Yu J . (2020). Robustness of an aerobic granular sludge sequencing batch reactor for low strength and salinity wastewater treatment at ambient to winter temperatures. Journal of Hazardous Materials, 384: 121454

[20] Heidari H , Sedighi M , Zamir S M , Shojaosadati S A . (2017). Biophenol A degradation by Ralstonia eutropha in the absence and present of phenol. International Biodeterioration & Biodegradation, 119: 37–42

[21] Huang X , Li W , Zhang D , Qin W . (2013). Ammonium removal by a novel oligotrophic Acinetobacter sp. Y16 capable of heterotrophic nitrification-aerobic denitrification at low temperature. Bioresource Technology, 146: 44–50

[22] Jantarakasem C , Kasuga I , Kurisu F , Furumai H . (2020). Temperature-dependent ammonium removal capacity of biological activated carbon used in a full-scale drinking water treatment plant. Environmental Science & Technology, 54(20): 13257–13263

[23] Jin C , Xing J , Chen Z , Meng Y , Fan F , Ahmed T , Meng F . (2021). Development of a flow-through biofilm reactor for anammox startup and operation: nitrogen removal and metacommunity. ACS ES&T Water, 1(3): 573–583

[24] Kartal B , Maalcke W J , de Almeida N M , Cirpus I , Gloerich J , Geerts W , Op Den Camp H J , Harhangi H R , Janssen-Megens E M , Francoijs K J . . (2011). Molecular mechanism of anaerobic ammonium oxidation. Nature, 479(7371): 127–130

[25] Kim D J , Lee D I , Keller J . (2006). Effect of temperature and free ammonia on nitrification and nitrite accumulation in landfill leachate and analysis of its nitrifying bacterial community by FISH. Bioresource Technology, 97(3): 459–468

[26] Kos P . (1998). Short SRT (solids retention time) nitrification process flowsheet. Water Science and Technology, 38(1): 23–29

[27] Kouba V , Bachmannova C , Podzimek T , Lipovova P , Van Loosdrecht M C M . (2022). Physiology of anammox adaptation to low temperatures and promising biomarkers: a review. Bioresource Technology, 349: 126847

[28] Kruglova A, Gonzalez-Martinez A, Kråkström M, Mikola A, Vahala R (2017). Bacterial diversity and population shifts driven by spotlight wastewater micropollutants in low-temperature highly nitrifying activated sludge. Science of the Total Environment, 605–606: 291–299

[29] Laureni M , Falas P , Robin O , Wick A , Weissbrodt D G , Nielsen J L , Ternes T A , Morgenroth E , Joss A . (2016). Mainstream partial nitritation and anammox: long-term process stability and effluent quality at low temperatures. Water Research, 101: 628–639

[30] Lee K , Lee S , Lee S , Kim S , Oh H , Park P , Choo K , Kim Y , Lee J , Lee C . (2016). Fungal quorum quenching: a paradigm shift for energy savings in membrane bioreactor (MBR) for wastewater treatment. Environmental Science & Technology, 50(20): 10914–10922

[31] Li J , Peng Y , Zhang L , Liu J , Wang X , Gao R , Pang L , Zhou Y . (2019). Quantify the contribution of anammox for enhanced nitrogen removal through metagenomic analysis and mass balance in an anoxic moving bed biofilm reactor. Water Research, 160: 178–187

[32] Li W M , Liao X W , Guo J S , Zhang Y X , Chen Y P , Fang F , Yan P . (2020). New insights into filamentous sludge bulking: the potential role of extracellular polymeric substances in sludge bulking in the activated sludge process. Chemosphere, 248: 126012

[33] Li Y , Li B , Wang C , Fan J , Sun H . (2014). Aerobic degradation of trichloroethylene by co-metabolism using phenol and gasoline as growth substrate. International Journal of Molecular Sciences, 15(5): 9134–9148

[34] Liu Y , Yuan L , Huang S , Huang D , Liu B . (2020). Integrated design of monitoring, analysis and maintenance for filamentous sludge bulking in wastewater treatment. Measurement, 155: 107548

[35] Lu H , Wang T , Lu S , Liu H , Wang H , Li C , Liu X , Guo X , Zhao X , Liu F . (2021). Performance and bacterial community dynamics of hydroponically grown Iris pseudacorus L. during the treatment of antibiotic-enriched wastewater at low/normal temperature. Ecotoxicology and Environmental Safety, 213: 111997

[36] Luo W , Zhao Y , Ding H , Lin X , Zheng H . (2008). Co-metabolic degradation of bensulfuron-methyl in laboratory conditions. Journal of Hazardous Materials, 158(1): 208–214

[37] Mukherjee M , Hu Y , Tan C , Rice S , Cao B . (2018). Engineering a light-responsive, quorum quenching biofilm to mitigate biofouling on water purification membranes. Science Advances, 4(12): eaau1459

[38] Pan K L , Gao J F , Li H Y , Fan X Y , Li D C , Jiang H . (2018). Ammonia-oxidizing bacteria dominate ammonia oxidation in a full-scale wastewater treatment plant revealed by DNA-based stable isotope probing. Bioresource Technology, 256: 152–159

[39] Peng Y , Gao C , Wang S , Ozaki M , Takigawa A . (2003). Non-filamentous sludge bulking caused by a deficiency of nitrogen in industrial wastewater treatment. Water Science and Technology, 47(11): 289–295

[40] Peng Y , Zhu G . (2006). Biological nitrogen removal with nitrification and denitrification via nitrite pathway. Applied Microbiology and Biotechnology, 73(1): 15–26

[41] Pesqueira J , Pereira M , Silva A . (2020). Environmental impact assessment of advanced urban wastewater treatment technologies for the removal of priority substances and contaminants of emerging concern: a review. Journal of Cleaner Production, 261: 121078

[42] Petropoulos E , Dolfing J , Davenport R J , Bowen E J , Curtis T P . (2017). Developing cold-adapted biomass for the anaerobic treatment of domestic wastewater at low temperatures (4, 8 and 15 °C) with inocula from cold environments. Water Research, 112: 100–109

[43] Piai L , Blokland M , Van Der Wal A , Langenhoff A . (2020). Biodegradation and adsorption of micropollutants by biological activated carbon from a drinking water production plant. Journal of Hazardous Materials, 388: 122028

[44] Reino C , Suarez-Ojeda M E , Perez J , Carrera J . (2016). Kinetic and microbiological characterization of aerobic granules performing partial nitritation of a low-strength wastewater at 10 °C. Water Research, 101: 147–156

[45] Ren W , Xue B , Yang J , Lu C . (2020). Effects of the Northeast China revitalization strategy on regional economic growth and social development. Chinese Geographical Science, 30(5): 791–809

[46] Rodriguez-Sanchez A , Muñoz-Palazon B , Hurtado-Martinez M , Maza-Marquez P , Gonzalez-Lopez J , Vahala R , Gonzalez-Martinez A . (2019). Microbial ecology dynamics of a partial nitritation bioreactor with Polar Arctic Circle activated sludge operating at low temperature. Chemosphere, 225: 73–82

[47] Schages L , Wichern F , Kalscheuer R , Bockmühl D . (2020). Winter is coming: impact of temperature on the variation of beta-lactamase and mcr genes in a wastewater treatment plant. Science of the Total Environment, 712: 136499

[48] Song T , Li S , Jin J , Yin Z , Lu Y , Bao M , Li Y . (2019). Enhanced hydrolyzed polyacrylamide removal from water by an aerobic biofilm reactor-ozone reactor-aerobic biofilm reactor hybrid treatment system: performance, key enzymes and functional microorganisms. Bioresource Technology, 291: 121811

[49] Sui Q , Huang J , Deng S B , Chen W W , Yu G . (2011). Seasonal variation in the occurrence and removal of pharmaceuticals and personal care products in different biological wastewater treatment processes. Environmental Science & Technology, 45(8): 3341–3348

[50] Tandoi V, Jenkins D, Wanner J (2006). Activated Sludge Separation Problems: Theory, Control Measures, Practical Experience. London: IAW Publishing

[51] Wang H , Zhao Y , Adeel M , Liu C , Wang Y , Luo Q , Wu H , Sun L . (2019). Characteristics and health risk assessment of potentially toxic metals in urban topsoil in Shenyang city, Northeast China. Clean (Weinheim), 48(1): 1–8

[52] Wang P , Yu Z , Qi R , Zhang H . (2016). Detailed comparison of bacterial communities during seasonal sludge bulking in a municipal wastewater treatment plant. Water Research, 105: 157–166

[53] Wang X , Li T , Yang X , Zhang T , Liu Z , Guo E , Liu Z , Qu H , Chen X , Wang L , Xiang H , Lai Y . (2018). Rice yield potential, gaps and constraints during the past three decades in a climate-changing Northeast China. Agricultural and Forest Meteorology, 259: 173–183

[54] Wang Y , Zhang Z , Qiu L , Guo Y , Wang X , Xiong X , Chen S . (2015). Effect of temperature downshifts on biological nitrogen removal and community structure of a lab-scale aerobic denitrification process. Biochemical Engineering Journal, 101: 200–208

[55] Wang Y K , Wang X C , Ma X Y . (2021). Micropollutants and biological effects as control indexes for the operation and design of shallow open-water unit ponds to polish domestic effluent. Journal of Hazardous Materials, 418: 126306

[56] Winkler M K H , Meunier C , Henriet O , Mahillon J , Suárez-Ojeda M E , Del Moro G , de Sanctis M , di Iaconi C , Weissbrodt D G . (2018). An integrative review of granular sludge for the biological removal of nutrients and recalcitrant organic matter from wastewater. Chemical Engineering Journal, 336: 489–502

[57] Xiao D , Lvu Z , Chen S , Huo Y , Fan W , Huo M . (2022). Tracking Cryptosporidium in urban wastewater treatment plants in a cold region: occurrence, species and infectivity. Frontiers of Environmental Science & Engineering, 16(9): 112

[58] Xiong H , Dong S , Zhang J , Zhou D , Rittmann B . (2018). Roles of an easily biodegradable co-substrate in enhancing tetracycline treatment in an intimately coupled photocatalytic-biological reactor. Water Research, 136: 75–83

[59] Yang J , Feng L , Pi S , Cui D , Ma F , Zhao H P , Li A . (2020). A critical review of aerobic denitrification: insights into the intracellular electron transfer. Science of the Total Environment, 731: 139080

[60] Yao S , Ni J , Chen Q , Borthwick A G . (2013a). Enrichment and characterization of a bacteria consortium capable of heterotrophic nitrification and aerobic denitrification at low temperature. Bioresource Technology, 127: 151–157

[61] Yao S , Ni J , Ma T , Li C . (2013b). Heterotrophic nitrification and aerobic denitrification at low temperature by a newly isolated bacterium, Acinetobacter sp. HA2. Bioresource Technology, 139: 80–86

[62] Zhang D , Li W , Huang X , Qin W , Liu M . (2013). Removal of ammonium in surface water at low temperature by a newly isolated Microbacterium sp. strain SFA13. Bioresource Technology, 137: 147–152

[63] Zhang H , Li X , An Z , Liu Z , Tang C , Zhao X . (2021). Treatment of polyacrylamide-polluted wastewater using a revolving algae biofilm reactor: pollutant removal performance and microbial community characterization. Bioresource Technology, 332: 125132

[64] Zhang J , Wu P , Hao B , Yu Z . (2011). Heterotrophic nitrification and aerobic denitrification by the bacterium Pseudomonas stutzeri YZN-001. Bioresource Technology, 102(21): 9866–9869

[65] Zhang L , Jiang L , Zhang J , Li J , Peng Y . (2022a). Enhancing nitrogen removal through directly integrating anammox into mainstream wastewater treatment: advantageous, issues and future study. Bioresource Technology, 362: 127827

[66] Zhang M , Zhang S , Bao Q , Yang C , Qin Y , Fu J , Chen W . (2020). Temporal variation and source analysis of carbonaceous aerosol in industrial cities of Northeast China during the spring festival: the case of changchun. Atmosphere (Basel), 11(9): 991–1009

[67] Zhang Q , Liu Y , Zhang C , Zhou D . (2022b). Easily biodegradable substrates are crucial for enhancing antibiotic risk reduction: low-carbon discharging policies need to be more specified. Water Research, 210: 117972

[68] Zhang Q, Yang W, Ngo H, Guo W, Jin P, Dzakpasu M, Yang S, Wang X, Ao D (2016). Current status of urban wastewater treatment plants in China. Environment International, 92–93: 11–22

[69] Zhao T , Chen P , Zhang L , Zhang L , Gao Y , Ai S , Liu H , Liu X . (2021). Heterotrophic nitrification and aerobic denitrification by a novel Acinetobacter sp. TAC-1 at low temperature and high ammonia nitrogen. Bioresource Technology, 339: 125620

[70] Zheng W , Wen X , Zhang B , Qiu Y . (2019). Selective effect and elimination of antibiotics in membrane bioreactor of urban wastewater treatment plant. Science of the Total Environment, 646: 1293–1303

[71] Zhou D D , Jiang X H , Lu Y , Fan W , Huo M X , Crittenden J C . (2016). Cotransport of graphene oxide and Cu(II) through saturated porous media. Science of the Total Environment, 550: 717–726

[72] Zhou H , Li X , Xu G , Yu H . (2018a). Overview of strategies for enhanced treatment of municipal/domestic wastewater at low temperature. Science of the Total Environment, 643: 225–237

[73] Zhou X , Liu X , Huang S , Cui B , Liu Z , Yang Q . (2018b). Total inorganic nitrogen removal during the partial/complete nitrification for treating domestic wastewater: removal pathways and main influencing factors. Bioresource Technology, 256: 285–294

[74] Zhu G , Xia C , Shanyun W , Zhou L , Liu L , Zhao S . (2015). Occurrence, activity and contribution of anammox in some freshwater extreme environments. Environmental Microbiology Reports, 7(6): 961–969

[75] Zou S , Yao S , Ni J . (2014). High-efficient nitrogen removal by coupling enriched autotrophic-nitrification and aerobic-denitrification consortiums at cold temperature. Bioresource Technology, 161: 288–296

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