Results 31 to 40 of about 6,837 (85)

好氧颗粒污泥处理高盐榨菜废水除污特性研究

Gongye shui chuli, 2015
用接种成熟的高盐好氧颗粒污泥的序批式反应器(SBR)处理高盐榨菜废水,考察了有机负荷及DO对好氧颗粒污泥去除主要污染物特性的影响.结果表明:有机负荷过高或过低均会影响颗粒粒径及结构,从而影响反应器对污染物的去除.提高DO有助于去除COD,但其过高或过低都会导致亚硝酸盐的积累和颗粒污泥微环境的分布,从而影响到对其他污染物的去除效果,以DO为7.0 mg/L时反应器的除污效能最佳.
陈垚, 黄鹏程, 杨威, 殷康烈
doaj   +2 more sources

外加碳源对AOA-SBR工艺脱氮除磷效果的影响

Gongye shui chuli, 2017
采用厌氧/好氧/缺氧模式运行的SBR工艺处理模拟城市污水，考察外加碳源乙酸钠和污泥水解酸化上清液对其脱氮除磷效果的影响。模拟城市污水，进水水质COD为400 mg/L、氨氮为60 mg/L、磷酸盐为7 mg/L。结果表明：不投加碳源时，系统对COD、氨氮、磷酸盐的去除率分别为90%、91%、82%；乙酸钠投加量为60 mg/L的条件下，外加乙酸钠系统对COD、氨氮、磷酸盐的去除率分别为93%、100%、100%，磷的去除主要是通过好氧聚磷作用；上清液投加量折合进水COD为30 mg/L时 ...
黄庆涛, 宋秀兰
doaj   +2 more sources

锅炉的酸洗除垢

Gongye shui chuli, 1987
为了保证锅炉安全经济运行,锅炉应加强给水处理,以防垢为主,这是积极的态度。但是,在不得已的情况下,必须对水垢及时地加以清除。清除水垢的方法有机械法、碱洗法、栲胶除垢法和酸洗法。目前很多地方的锅炉结垢严重,都在采取不同的方法除垢。下面就我厂十几年的锅炉酸洗经验介绍于后,可供参考。锅炉酸洗除垢法常用盐酸作清洗剂,再在其中加入缓蚀剂。此法对清除碳酸盐水垢有显著效果,且极少腐蚀锅炉。如果清除硅酸盐水垢时,需添加适量的氢氟酸。
吴立旭
doaj  

[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]

Se Pu
Gu CX.
europepmc   +1 more source

[Expert consensus on perioperative management of tooth extraction in patients receiving denosumab therapy]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Ye L, Cao Y, Sun G, Xue Y, Cui N, Cai Y, Zou D, Tang H, Hu Y, Luo T, Sun L, Gong Z, Zhu F, Zhang F, You M, Guo Y, Wang Y, Wang L, Chen S, Han B, Zhang W, Zhou Q, He Y, Zhao J, Hu K, Liu L, Liu J, Pan J.   +27 more
europepmc   +1 more source

[Expert consensus on airway lavage therapy for adult burn patients (2026 edition)]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Chinese Burn Association, Burn Medicine Branch of China International Exchange and Promotion Association for Medical and Healthcare.   +1 more
europepmc   +1 more source

[In vitro and in vivo antibacterial effects of the mitochondrial antioxidant Visomitin against <i>Enterococcus</i>]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Yang Q, Wu Y, Wu R, She P.
europepmc   +1 more source

[Clinical characteristics and therapeutic insights of pediatric allergic fungal rhinosinusitis]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Li C, Li Y, Xu Y, Wei Y, Zhang H, Cai F, Duan Q, Seng D.   +7 more
europepmc   +1 more source

[Advances in application of tissue expansion technology in breast reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jiang Y, Tang Z, Xiao S.
europepmc   +1 more source

[Gout of the manubriosternal joints: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gan D, Fu Q, Tang X, Li C, Shu Z.
europepmc   +1 more source