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Optimization of process parameters for mature landfill leachate pretreatment using MAP precipitation

Wei LI, Xiaowen DING, Min LIU, Yuewen GUO, Lei LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 892-900 doi: 10.1007/s11783-012-0440-9

Abstract: high concentrations of ammonium-nitrogen ( ) and refractory organic compounds.experiments and factorial experiments were carried out to determine the optimal conditions enhancing the magnesiumammonium phosphate (MAP) precipitation process, and the experimental results demonstrated that the removalrate of was more than 85% when MgO and NaH PO ·2H O were applied as external sources of magnesiumfor the removal of high concentrations of , and up to 90% of ammonium could be released under molar

Keywords： magnesium ammonium phosphate precipitation     mature landfill leachate     optimization     ammonium-nitrogen    

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Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by

H. Watamura, H. Marukawa, I. Hirasawa

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 55-59 doi: 10.1007/s11705-013-1312-y

Abstract: Relationship between magnesium ammonium phosphate (MAP) crystal properties and the filtration ability

Keywords： membrane separation     crystallization     MAP    

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Development of ASCP for Ammonium Phosphate Technology and Five Projects of Phosphate Fertilizer in China

Zhong Benhe

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 22-25

Abstract:

The production of ammonium phosphate by “ammoniated slurry concentrating process”（ASCPASCP have been built with a total capacity of 2.79×106 t/a, which is 60% of the total ammoniumphosphate production in China.Recently, a technique for ammonium phosphate production combining both ASCP and the imported PACP hasThe new process with independent property right has been adopted in the five updating projects of phosphate

Keywords： phosphate fertilizer     ammonium phosphate     ammonium phosphate by ASCP    

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Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphate

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 1047-1057 doi: 10.1007/s11709-021-0755-3

Abstract: Magnesium phosphate cement (MPC) received increased attention in recent years, but MPC-based concrete

Keywords： magnesium phosphate cement-based concrete     micro-steel fibers     four-point flexural strength     compressive    

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Synthesis and characterization of magnesium hydroxide by batch reaction crystallization

Xingfu SONG, Shuying SUN, Dengke ZHANG, Jin WANG, Jianguo YU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 416-421 doi: 10.1007/s11705-011-1125-9

Abstract: Magnesium hydroxide with high purity and uniform particle size distribution was synthesized by the directprecipitation method using MgCl and NaOH as reactive materials and NaCl as additive to improve theThe particle size distribution, crystal phase, morphology, and surface area of magnesium hydroxide wereThe ball-like magnesium hydroxides with the particle size distribution of 6.0–30.0 μm and purity higherThis simple and mild synthesis method was promising to be scaled up for the industrial production of magnesium

Keywords： magnesium hydroxide     direct precipitation method     industrial crystallization     particle size distribution    

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Use of zeolitized coal fly ash in the simultaneous removal of ammonium and phosphate from aqueous solution

WU Deyi, HU Zhanbo, WANG Xinze, HE Shengbing, KONG Hainan

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 213-220 doi: 10.1007/s11783-007-0037-x

Abstract: The removal of ammonium and phosphate that coexist in aqueous solution by the synthesized zeolites wereThe results showed that zeolitized fly ash could efficiently eliminate ammonium and phosphate at theSaturation of zeolite with Ca rather than N favored the removal of both ammonium and phosphate becausethe cation exchange reaction by the NH resulted in the release of Ca into the solution and precipitationof ammonium.
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Preparation of ultrafine α-AlO using precipitation-azeotropic distillation method

XIAO Jin, QIN Qi, ZHOU Feng, CHEN Yanbin, WAN Ye

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 226-231 doi: 10.1007/s11465-008-0029-y

Abstract: Ammonium aluminum carbonate hydroxide (AACH) was prepared by a precipitation-azeotropic distillationmethod, which uses aluminum sulfate as the Al source and ammonium carbonate as the precipitant.particle size and well-distributed property can be synthesized only after aluminum sulfate atomizes into ammonium

Keywords： calcination temperature     spherical     AACH     carbonate hydroxide     ammonium carbonate    

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EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 479-491 doi: 10.15302/J-FASE-2023480

Abstract:

● LFD was treated by fly ash-based chemical precipitation and CO

Keywords： anaerobic digestion     chemical oxygen demand     fly ash     ion removal     total phosphate    

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Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 130-138 doi: 10.1007/s11705-013-1332-7

Abstract: Magnesium hydroxide is an important chemical, and is usually obtained from seawater or brine via precipitationThe particle size distribution of magnesium hydroxide has great effects on the subsequent filtrationIn this paper, micron-sized magnesium hydroxide with high purity, large particle size and low water contentin filter cake was synthesized via simple wet precipitation in a mixed suspension mixed product removalThe effects of reactant concentration, residence time and impurities on the properties of magnesium hydroxide

Keywords： magnesium hydroxide     precipitation     micron-sized     crystallization kinetics    

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Research on evaluation of extinguishing concentration of superfine ammonium phosphate extinguishing agent

Yin Zhiping,Liu Aihua,Pan Renming

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 90-95

Abstract: justify;">Extinguishing concentration measurement experiments in the cup burner on two kinds of superfine ammoniumphosphate extinguishing agents with different particle sizes had been done by means of filtering and

Keywords： laser attenuation measurement     filtering and weighing method     superfine particle extinguishing agent     extinguishing concentration    

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Local arc discharge mechanism and requirements of power supply in micro-arc oxidation of magnesium alloy

Ming CHEN, Yuezhou MA, Yuan HAO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 98-105 doi: 10.1007/s11465-009-0088-8

Abstract: To study the requirements of the power supply in micro-arc oxidation (MAO) of magnesium alloy, many experimentsIt is considered that magnesium MAO process consists of three stages including anodic oxidation, micro-arc

Keywords： micro-arc oxidation     local arc discharge     pulse power supply     magnesium alloy    

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Enhanced adsorption of phosphate by loading nanosized ferric oxyhydroxide on anion resin

Jing REN,Nan LI,Lin ZHAO,Nanqi REN

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 531-538 doi: 10.1007/s11783-014-0629-1

Abstract: prepared by loading nanosized ferric oxyhydroxide (FO) on anion exchanger resin for the removal of phosphateBatch adsorption experiments revealed that higher temperature (313K), higher initial phosphate concentration(50 mg·L ) and lower solution pH (pH value of 2) would be more propitious to phosphate adsorption.Competition effect of coexisting anions on phosphate removal can be concluded as sulfate>nitrate>chlorideFreundlich isotherm model can describe the adsorption of phosphate on FOAE more accurately, which indicated

Keywords： phosphate removal     adsorption     nanosized ferric oxyhydroxide     anion exchanger    

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Effects of operational and structural parameters on cell voltage of industrial magnesium electrolysis

Ze Sun,Chenglin Liu,Guimin Lu,Xingfu Song,Jianguo Yu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 522-531 doi: 10.1007/s11705-015-1539-x

Abstract: is the energy foundation of the electrolysis process and the source of the multiphysical fields in a magnesiumobtain the minimum resistance voltage which has a significant effect on the energy consumption in the magnesium

Keywords： finite element method     magnesium electrolysis cell     electric field    

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Green process to recover magnesium chloride from residue solution of potassium chloride production plant

WANG Lin, HE Yunliang, WANG Yanfei, BAO Ying, WANG Jingkang

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 385-389 doi: 10.1007/s11705-008-0079-z

Abstract: The green process to recover magnesium chloride from the residue solution of a potassium chloride productionThe residue solution contains magnesium chloride above 25 wt-%, potassium chloride and sodium chlorideimpurity removal operation and the two-stage evaporation-cooling crystallization procedure to produce magnesiumThe produced magnesium chloride is up to industrial criteria.

Keywords： industrial production     chemical industrial     produced magnesium     chloride production     impurity carnallite    

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A potentiometric cobalt-based phosphate sensor based on screen-printing technology

Lei ZHU,Xiaohong ZHOU,Hanchang SHI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 945-951 doi: 10.1007/s11783-013-0615-z

Abstract: The cobalt-based phosphate sensor showed a phosphate-selective potential response in the range of 10DO and pH were found to interfere with sensor responses to phosphate.sensitivity, and stability, which are comparable with conventional bulk Co-wire sensors, the proposed phosphate

Keywords： phosphate     cobalt     screen-printing technology     electroplate     wastewater    

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Title Author Date Type Operation

Optimization of process parameters for mature landfill leachate pretreatment using MAP precipitation

Wei LI, Xiaowen DING, Min LIU, Yuewen GUO, Lei LIU

Journal Article

Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by

H. Watamura, H. Marukawa, I. Hirasawa

Journal Article

Development of ASCP for Ammonium Phosphate Technology and Five Projects of Phosphate Fertilizer in China

Zhong Benhe

Journal Article

Experimental study on mechanical properties of a novel micro-steel fiber reinforced magnesium phosphate

Journal Article

Synthesis and characterization of magnesium hydroxide by batch reaction crystallization

Xingfu SONG, Shuying SUN, Dengke ZHANG, Jin WANG, Jianguo YU

Journal Article

Use of zeolitized coal fly ash in the simultaneous removal of ammonium and phosphate from aqueous solution

WU Deyi, HU Zhanbo, WANG Xinze, HE Shengbing, KONG Hainan

Journal Article

Preparation of ultrafine α-AlO using precipitation-azeotropic distillation method

XIAO Jin, QIN Qi, ZHOU Feng, CHEN Yanbin, WAN Ye

Journal Article

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

Journal Article

Preparation and crystallization kinetics of micron-sized Mg(OH)

Xingfu SONG, Kefeng TONG, Shuying SUN, Ze SUN, Jianguo YU

Journal Article

Research on evaluation of extinguishing concentration of superfine ammonium phosphate extinguishing agent

Yin Zhiping,Liu Aihua,Pan Renming

Journal Article

Local arc discharge mechanism and requirements of power supply in micro-arc oxidation of magnesium alloy

Ming CHEN, Yuezhou MA, Yuan HAO,

Journal Article

Enhanced adsorption of phosphate by loading nanosized ferric oxyhydroxide on anion resin

Jing REN,Nan LI,Lin ZHAO,Nanqi REN

Journal Article

Effects of operational and structural parameters on cell voltage of industrial magnesium electrolysis

Ze Sun,Chenglin Liu,Guimin Lu,Xingfu Song,Jianguo Yu

Journal Article

Green process to recover magnesium chloride from residue solution of potassium chloride production plant

WANG Lin, HE Yunliang, WANG Yanfei, BAO Ying, WANG Jingkang

Journal Article

A potentiometric cobalt-based phosphate sensor based on screen-printing technology

Lei ZHU,Xiaohong ZHOU,Hanchang SHI

Journal Article