通过对保水剂和旱地龙这两种抗旱节水剂在苹果生长上的试验研究,分析了抗旱节水剂集成应用对土壤含水率、苹果产量、苹果品质(主要指可溶性固形物)的影响。结果表明,施用抗旱节水剂可增加土壤含水率和果实品质,增产达13365 06~19036 58kg/hm2,增加纯经济效益20570~34750元/hm2;水分利用效率提高,每1hm2节水892m3,同时对抗旱节水剂应用条件下的果树灌溉制度进行了研究,提出了不同降雨年型的灌溉制度。
韩玉国 杨培岭 刘洪禄 毕永刚
doaj
循环冷却水中加入剂量为0.1~0.15mg/L的臭氧,进行连续臭氧化,同时加入缓蚀剂和阻垢剂,这是一种有效而经济的处理方法。这种方法能够抑制有机氯化物(AOX)的生成,并使水中的COD值保持很低的水平。冷却水的澄清透明度也得到了改善。即使有外来有机物侵入冷却水系统只要低于某一水平,系统仍然可以承受。排放废水中的微生物静电致光效应GL值也很低。腐蚀率(德国标准ST-37的碳钢测试)也保持较低水平。如果采用铜材或类似材质,则必须加入某种特殊的缓蚀剂。
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以某ABS合成树脂厂生产废水为对象,分析水质波动大的原因,对药剂投加量进行优化研究。结果表明:废水中排入的胶乳含量大小是造成水质波动的主要原因,浊度范围不同,药剂最优投加量不同。通过在不同水质条件下投加不同剂量混凝药剂,混凝气浮工艺出水水质稳定,浊度始终保持在60 NTU以下,COD维持在900~1 000 mg/L,药剂成本与现有相比可降低43.53%。
李焱 +4 more
doaj
[Determination of 16 organic ultraviolet absorbers in drinking water by solid phase extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Wang Z, Zhao C, Ye BX, Chen YY.
europepmc +1 more source
[Experimental teaching design of instrument analysis for undergraduate study: detection of bifenthrin pesticide residues in tea by response surface methodology-optimized QuEChERS combined with gas chromatography-mass spectrometry]. [PDF]
Gu CX.
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[<i>Wenshen Yanggan</i> Decoction improves intestinal function in mouse models of Parkinson's disease by regulating intestinal bioactive substances]. [PDF]
Hou L +6 more
europepmc +1 more source
[Determination of six whitening ingredients in cosmetics by ultra performance liquid chromatography coupled with photodiode array detector and corona charged aerosol detector]. [PDF]
Li X +8 more
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[Ultrafine <i>Xiebai</i> powder alleviates lipopolysaccharide-induced acute lung injury in mice by suppressing ferroptosis and modulating the NF-κB/STAT3 signaling axis]. [PDF]
Zhu J +8 more
europepmc +1 more source
[Effect of pioglitazone on periodontitis-related renal injury in mice and its relationship with Klotho]. [PDF]
Shang Y +5 more
europepmc +1 more source
[Serum from rats with electroacupuncture activates the PI3K/Akt signaling pathway to improve synaptic plasticity in HT22 neurons with oxygen and glucose deprivation]. [PDF]
Shi X +8 more
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