ResultNovel biochar was prepared by ball milling using bamboo as raw material. The aim of this study was to find a good alternative way to improve the potentials of biochar for ammonium adsorption...
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ResultBall milling, a shear-force dominant process where the particle size goes on reducing by impact and attrition mainly consists of metallic balls (generally Zirconia (ZrO2) or steel balls), acting as grinding media and rotating shell to …
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ResultThe ball milling can greatly promote the ammonium adsorption capacity and accelerate adsorption rate. This particular study offers a relatively cost-effective and efficient methodology for the improvement in the adsorption capacity of biochar for ammonium nitrogen.
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ResultThe obtained results indicate that the decomposition process of ammonium sulfate catalyzed by ferric oxide can be divided into four stages of which the activation energies are 123.64, 126.58, 178.77 and 216.99 kJ·mol −1 respectively.
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ResultWe tested a hypothesis that the ball milling pretreatment for the analysis of fixed NH4+ may influence the analytical results depending on the content of exchangeable NH4+. Five paddy soils collected from the surface layer in Japan were treated with 15N-labeled ammonium sulfate at 0, 100, 500, or 1000 mg N …
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ResultThis research developed a method for the efficient and selective recovery of manganese from EMR and the removal of ammonia nitrogen (ammonium sulfate) under the combined action of ball milling and oxalic acid. The optimum process parameters of this method were obtained through single-factor …
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Resulttechnical reference for biochar obtained through ball milling techniques as a novel adsorbent for the removal of ammonium from contaminated water. Material and methods Chemicals and reagents The reagents used in this study include ammonium sulfate ((NH 4) 2SO 4), potassium sodium tartrate (KNaC 4H 4O 6 …
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ResultBall milling is a mechanical technique that is broadly used to grind powders into fine particles [134–141]. The reactants are generally broken apart using solvent molecules in the traditional method; but in ball milling, reactants are broken by using mechanical forces. The term mechanochemistry has been introduced very …
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ResultAmmonium sorption of the biochars could be well fitted by the Langmuir and pseudo-second-order model, and the NaOH-modified ball-milled biochar showed the highest ammonium sorption capacity of 8.93 mg g −1.
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ResultAerobic incubation of soil (< 2 mm) at 30 ̊ C for 7 days with 15N-labeled ammonium sulfate at 0, 100, 500, or 1000 mg 15N kg–1. BMP treatment: ball milling at 1200 rpm for 10 min of each incubated sample and the original soil without the incubation. 2 mol L–1 KCl extraction 3 at 1:5 soil:extractant ratio.
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