WEBNov 15, 2016 · It causes that the simulations probably deviate seriously from actual data. Therefore, the accuracy of the simulations for industrial coal gasifiion wastewater treatment units needs to be improved further. These tasks should promote the simulation, design, and optimization of the treatment process of coal gasifiion wastewater.
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WEBMar 12, 2024 · The wastewater from underground coal gasifiion (UCG) process has extremely complex composition and high concentrations of toxic and refractory compounds including phenolics, aliphatic and aromatic hydrocarbons, ammonia, cyanides, hazardous metals and metalloids. So, the development of biological processes for treating UCG .
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WEBJun 15, 2020 · The whole treatment process of CPW is shown in Fig. 1. The coal particles are introduced into the drying unit to provide steam for CLG and the remaining dry coal enters into the pyrolysis unit to produce pyrolysis gas and char. The CPW is generated during cooling and separation of pyrolysis gas. The dotted red line represents the impact .
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WEBFeb 1, 2021 · Coal gasifiion brine (CGB) is a typical hypersaline organic wastewater and its proper treatment is a challenging task. In the study membrane distillation (MD) experiments were conducted with raw and pretreated CGB as the feeds. The flux evolutions and permeate quality in different processes were compared to study the interaction .
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WEBNov 15, 2016 · It causes that the simulations probably deviate seriously from actual data. Therefore, the accuracy of the simulations for industrial coal gasifiion wastewater treatment units needs to be improved further. These tasks should promote the simulation, design, and optimization of the treatment process of coal gasifiion wastewater. 2.
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WEBJan 1, 2019 · The wastewater treatment process was firstly developed for Lurgi fixed bed pressurized gasifiion wastewater to deal with the high concentrated phenol and ammonia [22].It is well introduced in Harbin gasifiion plant and Inner Mongolia Tuke coal fertilizer project [13].The phenol and ammonia concentrations are reduced in this process to low .
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WEBTerms in this set (14) Composed of the organic solids during the wastewater treatment process. Solids screened from raw sewages are typically disposed of here. In aeration basins, these consume small particles of organic matter. When wastewater sits in tanks, allowing solids to sink to the bottom and greases and oils to rise to the surface.
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WEBJul 10, 2020 · Zero emission of wastewater from coalfired power plants (CFPPs) is one of the pathways for cleaner electricity production. It is expected that lowcost and reliable zero liquid discharge (ZLD) of flue gas desulphurization (FGD) wastewater will be achieved by applying the forced circulation multieffect distillation and crystallization (FCMEDC) .
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WEBNov 1, 2017 · Phenols and ammonia recovery process is a significant part of the CGW treatment to remove sour gas such as H 2 S and CO 2, and recycle the valuable resource in turn, such as phenols and ammonia [5].Nowadays, several types of phenols and ammonia recovery process have been applied to industry [6], [7], [8].The main .
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WEBJun 25, 2020 · Coal gasifiion wastewater (CGW) contains several types of aromatic pollutants, which impart high biotoxicity and reduce the quality of anaerobic treatment. Two types of hydrolysis acidifiion processes, namely microaerobic hybrid reactor (HA1) and upflow anaerobic sludge blanket reactor (HA2), were developed for pretreatment .
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WEBNov 10, 2016 · Coal gasifiion wastewater treatment process, especially for the wastewater produced by pressurized fixed bed gasifiion, has already become one of the key factors which restrict the ...
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WEBMetallurgical process and design. Eoin H. Macdonald, in Handbook of Gold Exploration and Evaluation, 2007 Spiral separators. Spiral separators were originally developed by Humphreys in 1899 for coal treatment processes in the USA and adapted for separating heavy minerals from beach sands. However, their cast iron construction made them .
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WEBMar 4, 2021 · Coal chemical enterprises should undertake one to two environmental protection demonstration tasks, while also undertaking process demonstration tasks. Coal chemical industry enterprises should conduct wastewater treatment technology demonstration from the aspects of highconcentration organic wastewater treatment, .
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WEBNov 1, 2020 · In the treatment of highsalt wastewater, coal chemical industry projects in China mostly use the "double membrane" reuse technology of "ultrafiltration + reverse osmosis". Reverse osmosis is the core and main technology of reuse treatment, while ultrafiltration is the pretreatment and protection process. Highsalt wastewater refers to ...
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WEBFeb 1, 2020 · Generation and treatment process of coal gasifiion wastewater. Water treatment in coal liquefaction. According to National Plan for MediumandLong Term Energy Development, coal liquefaction capacity is to increase to 30 million t/a (NDRC, 2007) in 2020. The planned coal liquefaction projects have achieved million t/a in .
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WEBMar 15, 2023 · Biochemical treatment is the main process of coal pyrolysis wastewater treatment (Zhao and Liu, 2016). Biochemical treatment generally includes anaerobic treatment unit, biological enrichment unit, and multistage anoxic/oxic (A/O) unit. Among them, anaerobic section can improve the biodegradability of toxic and refractory .
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WEBA process for converting a finely divided carbonaceous material, particularly coal, to a fuel gas. A finely divided or pulverized carbonaceous feed material, such as coal, is pretreated at a temperature of about 700 to 800/sup 0/F in order to destroy the caking properties of a caking coal feed in a fluidized pretreatment zone, or, alternatively to dry a noncaking .
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WEBNov 1, 2017 · An improved phenol and ammonia recovery process that the sour water stripper and the solvent recovery system are thermal integrated is proposed based on the conventional wastewater treatment process. Therein, the ammoniarich gas drawn from the middle of sour water stripper, as a heat source, is exchanged with the reboiler of the .
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WEBMar 1, 2020 · In particular, studies have determined the effect of different parameters, including the hydrothermal treatment, on direct coal liquefaction (DCL) in the presence of tetralin and iron sulfide alysts [21a]. ... Another backmixtype reactor for the proposed SRCII (solvent refined coal11) process has a height of m and diameter of m.
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WEBDec 1, 2017 · Coal chemical wastewater has such characteristics as high concentration of oil, ammonia nitrogen and COD. In this paper, treatment process of coal chemical industry is described mainly, such as pretreatment process, biochemical treatment process and polishing process. Through the recovery of phenol and ammonia and the treatment of .
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WEBDec 1, 2023 · The conventional means of harmless or resourceful utilization treatment of highsilica type SW (coal gangue as an example) mainly revolved around building ... 2022)et al. investigated the effect of light on anaerobic sludge treatment process and found that light could increase the hydrogen production rate of microorganisms by .
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