Results 31 to 40 of about 7,446 (84)

给水处理中活性炭吸附性能筛选的新指标——焦糖脱色率研究

Gongye shui chuli, 2012
对给水处理中活性炭吸附水中有机物的性能筛选指标进行研究，由于测定活性炭焦糖脱色率时所用焦糖的分子质量分布与天然水中有机物的分子质量分布相似，故提出用焦糖脱色率评价给水处理用活性炭的吸附性能。经试验证实，以焦糖脱色率评价活性炭吸附性能的试验结果与DL/T582—2004（以腐殖酸、富里酸、木质素、丹宁进行评价）的结果相同。建议用于给水处理的活性炭焦糖脱色率＞50%。
丁桓如, 张玉婷, 靳文广, 林爱玲, 王吉茂, 傅洁琦   +5 more
doaj   +2 more sources

两种合成絮凝剂在处理染料废水中的比较

Gongye shui chuli, 2011
以羧甲基壳聚糖和羧甲基壳聚糖铁(Ⅲ)为絮凝剂处理染料废水，试验研究了其对染料废水的絮凝性能、脱色性能。初步考察了pH、投加量、搅拌时间与沉降时间等影响絮凝效果的因素，Fe3+的引入增加了合成絮凝剂处理染料废水的絮凝作用。在羧甲基壳聚糖处理染料红、黄、兰、黑废水的脱色实验中，脱色率达到76.3%～93.5%，COD 去除率为85.5%～89.9%；而羧甲基壳聚糖铁(Ⅲ)的脱色率则达到78.5%～96.7%，COD 去除率为91.1%～94.2%。结果令人满意。
孙玉凤, 王风清, 王颖
doaj   +2 more sources

印染废水电浮选法脱色研究

Gongye shui chuli, 1986
电浮选法适用于多种可溶性染料溶液的脱色,试验确定了最佳工艺条件。结果可使高色度和低色度印染废水脱色至近于无色透明,该法简单实用,脱色效率高,有一定的实用价值。
苏宏, 辛世崇
doaj   +2 more sources

深色制革废水中Cr(Ⅵ)含量的测定

Gongye shui chuli, 2008
建立了以氧化镁为脱色剂，按GB 7467—1987标准测定深色制革废水中Cr(Ⅵ)含量的方法。实验表明:深色废水脱色率可达90%以上，Cr(Ⅵ)吸附率小于4%，当50 mL溶液中Cr(Ⅵ)质量在8.306～41.53μg时，回归方程m=0.834 3+20.32ΔA(r=0.999 9)。样品加标回收率为92.4%～97.6%，相对标准偏差为2.15%～4.37%。
邬宁昆, 胡敏杰, 孙静, 邵双喜
doaj   +2 more sources

[Determination of 40 carbonyl compounds in ambient air by high performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Li GH, Deng S, Li QQ, Zhang CL, Liu YF, Jiang B, Yao Q, Wang H, Wang BG.   +8 more
europepmc   +1 more source

[Determination of 16 organic ultraviolet absorbers in drinking water by solid phase extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Wang Z, Zhao C, Ye BX, Chen YY.
europepmc   +1 more source

[Determination of perfluorinated compounds， antibiotics and pesticides in drinking water by automated solid phase extraction with ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Liang J, Feng J, Zeng D, Zhou L, Zhong X, Li Y, Chen D.   +6 more
europepmc   +1 more source

[Determination of <i>S-</i>enantiomer in linagliptin by supercritical fluid chromatography-ultraviolet detection]. [PDF]

Se Pu
Li WJ, Jin W, Liu Q, Wang J, LE J.
europepmc   +1 more source

[Determination of 38 antibiotic residues in honey by magnetic dispersive solid-phase extraction-liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Sun J, Zhang Y, Liu FM, Zhao W, Jin Y, Zhang L, Xue XF, Chen R, Zhou HT.   +8 more
europepmc   +1 more source

[Determination of ergot alkaloids toxins in forage grass by ultra performance liquid chromatography-tandem mass spectrometry coupled with solid-phase supported liquid-liquid extraction]. [PDF]

Se Pu
Ren CX, Wang XM, Sheng WL, Han YZ, Zhang CY, Zheng SZ.   +5 more
europepmc   +1 more source