Investigation of the characteristics of concentrated leachate from six municipal solid waste incineration power plants in China

Ren, Xu; Liú, Dan; Chen, Weiming; Jiang, Guobin; Wu, ZiHan; Song, Kai

doi:10.1039/c7ra13259j

Cited by 31 publications

(5 citation statements)

References 33 publications

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“…The precision instruments such as three-dimensional fluorescence spectrometers and ultraviolet-visible spectrometers are required to measure DOM in the concentrated leachate. Most of the incineration plants in China are not equipped with these instruments and are responsible to send their samples to the other laboratories (Ren et al, 2018).…”

Section: Fly Ash and Leachate Treatmentmentioning

confidence: 99%

“…To improve its calorific value, waste is usually fermented by incineration plants for 6–10 days in storage pits to allow natural dehydration but with the penalty of high amount of leachate simultaneously. Different treatment techniques are employed, such as pre-treatment blende with membrane and biochemical treatment; however, membrane treatment yields higher amounts of concentrated leachate, approximately 20–40% of the entire leachate (Ren et al, 2018). Concentrated leachate consists of wastewater with higher absorption of low biological oxygen demand to chemical oxygen demand ratio and organic substances.…”

Section: Environmental Performance Of Innovative Incineration Technol...mentioning

confidence: 99%

See 1 more Smart Citation

Waste to energy incineration technology: Recent development under climate change scenarios

Khan

Mubeen

et al. 2022

Waste Manag Res

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With the huge generation of municipal solid waste (MSW), proper management and disposal of MSW is a worldwide challenge for sustainable development of cities and high quality of citizens life. Although different disposal ways are available, incineration is a leading harmless approach to effectively recover energy among the applied technologies. The purpose of the present review paper is to detail the discussion of evolution of waste to energy incineration and specifically to highlight the currently used and advanced incineration technologies, including combined incineration with other energy, for instance, hydrogen production, coal and solar energy. In addition, the environmental performance is discussed, including the zero waste emission, leachate and fly ash treatment, climate change contribution and public behaviour. Finally, challenges, opportunities and business model are addressed. Trends and perspectives on policies and techno-economic aspects are also discussed in this review. Different simulation tools, which can be used for the thermodynamic assessment of incineration plants, are debated; life-cycle inventory emissions and most critical environmental impacts of such plants are evaluated by life-cycle analysis. This review shows that waste incineration with energy yield is advantageous to handle waste problems and it affects climate change positively.

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Section: Fly Ash and Leachate Treatmentmentioning

confidence: 99%

Section: Environmental Performance Of Innovative Incineration Technol...mentioning

confidence: 99%

Waste to energy incineration technology: Recent development under climate change scenarios

Khan

Mubeen

et al. 2022

Waste Manag Res

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“…Kireç ile (ağırlıkça %10) çöp deponi sızıntı suyundan AKM, KOİ ve ağır metaller, sırasıyla %82, %19 ve %60 oranında uzaklaştırılmıştır. Kireç ile ön arıtmanın sermaye ve işletme maliyeti sırasıyla 175 $/m 3 ve 5 $/m 3 olarak bulunmuştur [90].…”

Section: Maliyetunclassified

Düzenli Depolama Alanlarından Sızıntı Suyunun Mikrodalga Işınlama ile Arıtılmasına Genel Bakış

Alhraishawi

Aslan

2022

Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi

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Artan kentleşme, yaşam standartlarının yükselmesi ve nüfus artışı, katı atık üretimini yükseltmektedir. Katı atıkların kaynağında etkin bir şekilde ayrıştırılması, organik atıkların düşük maliyet ve işletme kolaylığı ile düzenli depolama alanlarında bertaraf edilmesini cazip kılmaktadır. Ancak, düzenli depolama sahalarından kaynaklanan karmaşık yapılara ve yüksek konsantrasyonda kirleticilere sahip olan sızıntı suları, çevresel bir sorun teşkil etmektedir. Sızıntı suyu biyolojik ve fiziksel/kimyasal yöntemlerle arıtılabilir. Arıtma hedeflerine bağlı olarak, düzenli depolama sahalarında genellikle birleşik sistemler uygulanır. Mikrodalga (MD) radyasyon teknolojisi, hızlı ve seçici ısıtma kapasitesi, gelişmiş organik karbon mineralizasyonu/ayrışması/çözünürlüğü ve amonyak-azotu buharlaşması nedeniyle atıksu ve sızıntı suyunun arıtılmasında son yıllarda yaygın olarak çalışılmaktadır. Sıcaklık yükselme hızı, hedef sıcaklık, uygulama süresi, MW gücü çöp sızıntı suyunun ayrışmasını etkiler. Çalışmalar, MW radyasyonunun diğer yöntemlerle kombinasyonunun, sızıntı suyundaki organik maddenin ayrışmasını arttırdığını göstermiştir. İleri Oksidasyon Süreçlerinde (İOPs) güçlü serbest radikal oluşumu, sızıntı suyundaki organik maddelerin etkin ve güçlü bir şekilde çözünmesini sağlamaktadır. Hibrit MD-PS (persülfat)süreci, sızıntı suyu hacmi ve kirletici uzaklaştırma oranı dikkate alındığında, depolama sahası sızıntı suyunun arıtılması için uygulanabilir bir yöntem olarak görülmektedir. Bu derleme çalışmasında, düzenli depolama sahasında oluşan sızıntı suyunun arıtımında uygulanan MD süreci güç tüketimi, verimlilik ve işletme maliyeti açısından incelenmiştir. Ayrıca sızıntı suyu arıtımında daha etkin ve verimli kombine MD/İOS süreçleri değerlendirilmiştir.

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“…The classi cation system of MSW in China is imperfect, which leads to the high moisture content and low heating value of waste. After arriving at the incinerator, the waste is naturally fermented in the storage room for 6-10 days to reduce the moisture content of the waste and increase the calori c value of the waste [3,4] . However, the natural fermentation process produces a lot of leachates, which is a kind of saline wastewater containing a lot of refractory organic matter, ammonia nitrogen and other toxic and harmful substances [3][4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

“…After arriving at the incinerator, the waste is naturally fermented in the storage room for 6-10 days to reduce the moisture content of the waste and increase the calori c value of the waste [3,4] . However, the natural fermentation process produces a lot of leachates, which is a kind of saline wastewater containing a lot of refractory organic matter, ammonia nitrogen and other toxic and harmful substances [3][4][5][6] . The combined process of "pretreatment + biochemical treatment + advanced treatment" is dominant in the eld of leachate treatment in China.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on treatment of leachate concentrate from disk-tube reverse osmosis treatment in a waste incineration plant by gas-liquid contact evaporation

Qi¹,

Huang²,

Qi³

et al. 2023

Preprint

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Gas-liquid contact evaporation is a promising and effective technology for treatment of leachate concentrate (LC) in the waste incineration plant as this technology can utilize local resource such as anaerobic biogas and heat air passing through air preheater in the waste incineration plant turning LC into supplying water for circulating cooling water system. the influence of pH, temperature of air preheater and rate of evaporation on COD and NH3-N in condensate water were investigated in a laboratory-scale evaporator to identify the optimum operation of this technology. The results showed that the COD concentration in condensate water obviously decreased with increase of temperature of air preheater as higher temperature of air preheater led to higher the initial evaporation temperatures, the evaporation rate of water was significantly greater than that of small molecular organic matters with lower boiling point than water. COD in condensate water decreased with the increase of pH, as and the amount of volatile organic matters such as fatty acids, which were hydrolyzed, escaped from LC to condensate water decreased. The rate of evaporation had little influence on COD in the condensate water. NH3-N concentrations in condensate water in all experimental groups were far away from the limit value (14 mg/L) in the water quality standard for industry uses (GB/T 19923 − 2005) in China. When the condensate water can meet the water quality standard for using as supplying water for circulating cooling water system, the energy consumption, carbon emission and economic cost were lowest at the optimum condition which was at 450 ℃ of temperature of air preheater and pH = 6 of LC when CF = 10. The conclusions can promote the industrial application of direct contact evaporation treatment of LC.

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Investigation of the characteristics of concentrated leachate from six municipal solid waste incineration power plants in China

Abstract: The characteristics of concentrated leachate in municipal solid waste incineration power plants were analyzed from the CODCr, BOD5, the concentration of heavy metals, and spectral characteristics of dissolved organic matter.

Cited by 31 publications

References 33 publications

Waste to energy incineration technology: Recent development under climate change scenarios

Waste to energy incineration technology: Recent development under climate change scenarios

Düzenli Depolama Alanlarından Sızıntı Suyunun Mikrodalga Işınlama ile Arıtılmasına Genel Bakış

Experimental study on treatment of leachate concentrate from disk-tube reverse osmosis treatment in a waste incineration plant by gas-liquid contact evaporation

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