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已读[204] 发布: 2013/08/21 05:49:04
治疗措施是全池泼洒二氧化氯,浓度为0.25mg/L;亦可用灭菌灵进行防治,发病初期每50千克鱼用药1小包即可控制;三、细菌性烂鳃病。治疗措施是全池泼洒含氯消毒剂,含有...
已读[219] 发布: 2013/08/21 05:48:31
Reading Eagle The highlight for many people during the summer is swimming in pools, cooling off and relaxing in the clear water , allowing the stress of the other three seasons to float away. But what ... Hertzog, who co-owns the pool company with Kathy Milbrandt ... and more »
已读[200] 发布: 2013/08/21 05:47:35
Basingstoke Gazette Southern Water has applied to install two temporary containers at the Greywell water treatment works in Deptford Lane, which it says will allow the water to be treated for Cryptosporidium. The bug can cause upset stomachs and is common in farm and ... and more »
已读[201] 发布: 2013/08/21 05:46:57
Pittsburgh Post Gazette Terry Brady, deputy press secretary for the state Department of Conservation and Natural Resources, said the discoloration was believed to result from algae and bacteria killed by the chemicals used to treat the fountain water . Copper sulfate and ...
已读[199] 发布: 2013/08/21 05:46:36
The Packer Ozone has higher oxidizing potential than other reagents such as hydrogen peroxide, permanganate, chlorine dioxide , hypochlorous acid and chlorine gas. It...
已读[212] 发布: 2013/08/21 05:46:13
AllAfrica.com Udoh said that POPs, which are mostly generated by soil insecticides used for agricultural seed treatment and control of disease vectors such as insects, can be transported by wind and water . He said, "POP generated in one country ... He further said ... and more »
已读[1017] 发布: 2013/08/21 05:45:19
Food Safety Magazine Chlorine dioxide generating systems can be used for odor control, sanitation and water purification applications. Birko Corp. offers an exclusive ClO2 generation system, which eliminates older, conventional “vacuum draw” technology, for outstanding  ...
已读[610] 发布: 2013/08/21 05:04:26
巨丰金融网 ... 金属且反应温度较高,反应条件苛刻;化学气相沉积法也需要高温条件,而且产量低,不适合大批量生产; 氧化 石墨的化学还原法,工艺过程简单,产量大,成本低,但此方法需要将所得的 氧化 石墨烯进行还原。
已读[530] 发布: 2013/08/21 05:04:15
政府采购信息网 四、招标内容:本项目共分共六个包;包一:推流式搅拌器设备;包二:纤维转盘滤池设备;包三: 二氧化氯 投加设备;包四:PAC、PAM加药设备;包五:高效沉淀池设备;包六:曝气盘;详见招标文件【技术规范书】。
已读[446] 发布: 2013/08/21 03:19:03
慧聪网 询问操作者回答:因发雾,误认为氰化钠太小、光亮剂少,多次加氰化钠、光亮剂。当即取出部分槽液加水稀释、补加氢 氧化 钠、 氧化 锌,按正常工艺,全部合格。某厂为玛钢(铸铁类)电镀锌,工艺为氯  ... 更多 »
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