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Hydrothermal molten salt: A hydrothermal fluid in SCWO treatment of hypersaline wastewater
Chemical Engineering Journal, 2021Abstract A hydrothermal fluid system proposed in this paper is composed of immiscible molten salts and sub-/supercritical water (also named as hydrothermal molten salt, HyMoS). It can avoid salt deposition and equipment blocking in the process of SCWO treatment of hypersaline glyphosate wastewater, which provides an exalting technical idea for ...
Yishu Zhang +7 more
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Multiwall Carbon Nanotubes by Hydrothermal Treatment
MRS Proceedings, 2000AbstractMultiwall carbon nanotubes have been obtained from carbon soot after hydrothermal treatment at 800°C and 100 MPa. High-resolution electron microscopy (HRTEM) study reveals multiwall carbon nanotubes and carbon nanoparticles made of a hollow core enclosed in well-ordered concentric graphitic layers after hydrothermal treatment.
Jose M. Calderon-Moreno +1 more
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Faecal sludge treatment and utilization by hydrothermal carbonization
Journal of Environmental Management, 2018Hydrothermal carbonization (HTC) is a thermal conversion process that can be applied to convert faecal sludge into carbonaceous solids, called hydrochar. In this study, the technical feasibility of hydrochar production by HTC of faecal sludge was investigated. Experimental results showed energy contents of the produced hydrochar to be about 19-20 MJ/kg,
Krailak, Fakkaew +2 more
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Protein recovery from solubilized sludge by hydrothermal treatments
Waste Management, 2017New alternatives for sludge management have been developed in recent years, with hydrothermal treatments being one of the most attractive ones. Even though many studies have been made on the application of hydrothermal treatments as pre-treatment or end-line technologies for sludge stabilisation and/or minimization, there is a lack of knowledge about ...
Manuel, García +4 more
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Hydrothermal treatment and ethanol pulping of sunflower stalks
Bioresource Technology, 2008The influence of temperature in the hydrothermal treatment of sunflower stalks on the composition of the liquid fraction obtained was examined. The remaining solid fraction was subjected to ethanol pulping in order to obtain pulp that was used to produce paper sheets.
S, Caparrós +5 more
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Coke Modification Using Hydrothermal Oxidation Treatment
2016Improvement of the coke quality for blast furnace (BF) iron making by hydrothermal oxidation treatment on coke quality was investigated. Results show that, under subcritical condition, sulfur removal rate is 15% and the weight loss is 3%; under supercritical condition, both sulfur removal rate and mass loss rate increase with the increase of H2O2 ...
Quanqiang Ma, Huiqing Tang, Huanyu Zhang
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Degradation pathways of decabromodiphenyl ether during hydrothermal treatment
Chemosphere, 2007The hydrothermal degradation pathways of decabromodiphenyl ether during hydrothermal treatment were investigated. After an initial "Heating time", the reaction runs were carried out at constant temperature (heating to 300 degrees C and keeping temperature) and pressure (8MPa) in a SUS316 stainless steel micro autoclave filled with water.
Nose, Kazutoshi +4 more
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Reaction Kinetics of the Hydrothermal Treatment of Lignin
Applied Biochemistry and Biotechnology, 2007Lignins derived from abundant and renewable resources are nontoxic and extremely versatile in performance, qualities that have made them increasingly important in many industrial applications. We have shown recently that liquefaction of lignin extracted from aspen wood resulted in a 90% yield of liquid. In this paper, the hydrothermal treatment of five
Bo, Zhang +2 more
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Municipal incineration bottom ash treatment using hydrothermal solidification
Waste Management, 2007Solidification of municipal incineration bottom ash (MIBA) has been carried out using a hydrothermal processing method, in which the MIBA was first compacted in a mold at 5-20 MPa, and then hydrothermally cured in an autoclave under saturated steam pressure at 150-250 degrees C for 10-72 h.
Zhenzi, Jing +4 more
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Effect of Hydrothermal Treatment on Alumina Sol.
NIPPON KAGAKU KAISHI, 1994アルミニウムアルコキシドを熱水中で加水分解してベーマイトゾルを調製し,ゾルに対する水熱処理効果を調べた。水熱処理によってベーマイト粒子は大きくなった。粒子径の増大は高温で加熱処理してα-アルミナ化した場合,同一加熱処理温度(HTT)では未処理のべーマイトからのα-アルミナに比べて結晶粒は小さかった。ゾルの解こう剤にはカルボン酸を使用したが,ゾルーゲル変換を考慮した場合,解こう効果は酢酸及びプロピオン酸に適性があるように思われた。乾燥ゲルをHTT1100～1150℃の範囲で加熱処理することによってθ-アルミナからα-アルミナに変換した。この範囲のHTTでの組織変化は注目に値する。すなわち,均一組織に成長核が多数発生し,それらが成長して直径約10～20μmの球晶組織を形成した ...
Kazuro KAWAMURA, Shiro FUJIMOTO
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