The present work aims at highlighting the various industrial wastewater treatment technologies currently available including physico chemical and biological processes as well as constructed
Spent automotive catalyst SAC has attracted attention because of containing platinum group metals PGMs along with hazardous materials such as heavy metals and organic substances In this work a new process was proposed to recover platinum in SAC and simultaneously prepare glass ceramics by co treatment process with coal fly ash CFA The
Abstract Hydrothermal carbonization HTC is an emerging path to give a new life to organic waste and residual biomass Fulfilling the principles of the circular economy through HTC unpleasant organics can be transformed into useful materials and possibly energy carriers The potential applications of HTC are tremendous and the recent literature is full of investigations
Coal waste serves as a readily available and inexpensive precursor for synthesizing the adsorbent making it a cost effective alternative compared to commercially available catalysts for the degradation of TCE employing an advance oxidation process AOP driving towards a waste reduction approach and a green environment
Acid mine drainage AMD sludge a waste product from coal mine water treatment was used in this study as an adsorbent to develop a cost effective treatment approach to phosphorus removal from municipal secondary effluents Adsorption of orthophosphate onto AMD sludge particles followed the Freundlich isotherm model with an adsorption
In tertiary treatment processes wastewater treated by primary and secondary processes is converted into good quality water that can be used for different types of purpose that is drinking industrial or medicinal supplies An overview of different waste water treatments is given in Table
With the continuous expansion of industrial enterprises a large amount of high salt wastewater with complex components is produced Direct discharge will cause great harm to the ecosystem and waste a large amount of potential salt resources This paper summarizes the source water quality characteristics and environmental impact of high salinity wastewater and
Biological wastewater treatment processes in the absence of molecular oxygen where for the respiratory reaction the terminal electron acceptors are carbon dioxide organics nitrates and sulphate or fermentative reduction reactions undergoes are generally referred to as anaerobic processes
Zhou et al 2009 used the coking process to co pyrolysis coal and plastics to achieve a resourceful and harmless treatment of waste plastics The preparation of RDF is not limited by site and scale and is suitable for small and medium sized waste treatment plants to separately prepare and then is collected for efficient power generation
The 1977 2015 literature on treatment of the coal gasification wastewater is reviewed An overview based on ammonia and phenol recovery biochemical treatments and advanced treatment technologies is presented with the purpose of unveiling the reasons behind problems of high concentration of persistent organic pollutants being added in the environment
China is the largest coal consumer around the world and coal accounts for more than 60% of the country s energy mix Peng et al 2018; Wang et al 2019 Coal fly ash CFA a solid waste produced by coal fired thermal power plants during the combustion of pulverized coal is currently one of the largest solid wastes in China Yao et al 2015 In 2018
In Lurgi and BGL British Gas Lurgi coal gasification process wastewater containing high concentration of phenol and ammonia are discharged Zhang et al 2015 The flow rate of this wastewater is large and included pollutants are various Wei et al 2016 The concentration of phenol and COD in the wastewater is in a high range of 5000 10000 mg/L
The replacement of traditional and non renewable resources by shifting towards renewable based strategies is a strategy implemented by the European Union for a circular economy based society Among the various methods to produce renewable biofuels hydrothermal carbonization is promising in terms of waste management This technology
Coal gasification technology is essential for realizing clean and efficient conversion of coal as well as for reducing carbon emissions However coal gasification technology is accompanied by a large amount of coal gasification wastewater that is biodegradable In this work tourmaline was applied as a catalyst in electro Fenton like process
Thermochemical techniques have emerged as promising and sustainable approaches for converting diverse waste materials into valuable products including chemicals and fuels This study critically assesses the strengths and limitations of various thermochemical processes focusing on their potential for large scale implementation and commercial viability
5 Mining water treatment plant is a set of methods and activities Engineers develop special treatment systems adapted to the unique wastewater characteristics of a particular mining enterprise These mine water treatment solutions can include developing complex systems and combining multiple processing methods Training
Biological wastewater treatment processes in the absence of molecular oxygen where for the respiratory reaction the terminal electron acceptors are carbon dioxide organics nitrates and sulphate or fermentative reduction reactions undergoes are generally referred to as anaerobic processes
China s energy consumption is enormous In 2016 the primary energy consumption of China accounted for % of the world s energy consumption and its coal consumption accounted for % of the whole world BP 2017 The total amount of energy consumption in China was billion tons of standard coal equivalent in 2016 among which
The various waste treatment processes produce tons of ashes such as municipal solid waste incineration fly ash municipal solid waste incineration bottom ash coal fly ash coal bottom ash blast furnace slags biomass ash sewage sludge ash and different cocombustion ash Rather than landfilling these may be effectively utilized for the
The activated sludge process has been used for over a century and remains one of the most widely used biological wastewater treatment processes since its introduction by Arden and Lockett Ardern and Lockett 1914 Wiesmann et al 2007 Many physical chemical and biological properties of the activated sludge had been studied in attempts to
In this review paper most recent studies on hydrochars solid residue of the HTC process production characterization and application for wastewaters treatment was summarized and deeply discussed The role of initial feedstock source nature and characteristics as well as the HTC experimental conditions including the temperature the residence
Desalination and Water Treatment doi / 167 2019 122 132 be produced in the process of coal fired power generation As a toxic gas SO 2 tration of pollutants for the outlet of desulfurization waste water treatment system As the increase of environmental
Coal has the longest history of use amongst the fossil fuels with its use as a fuel dating back to 3000 BC in China and Wales [1] and undoubtedly it still remains the largest and cheapest source of solid fuel across the globe [2]; and there is an estimated 861 billion tonnes of coal reserves worldwide [3] Broadly speaking coal is a complex combustible sedimentary rock
The synthesis processes of coal based solid waste zeolite and their advantages and disadvantages are summarized Furthermore the application characteristics of various coal based solid waste zeolites and their common application fields are illustrated S Nasir and T Hussain Possible applications of coal fly ash in wastewater treatment
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