Hexaalent chromium compounds are often used in electroplating leather tanning and textile manufacturing and hae been found in some drinking water sources.
六价铬化合物常用于电镀，制革及纺织制造，还存在于一些饮用水水源中。
The technics of chemical etching, chemical polishing and chromium electroplating for stainless steel mould were studied.
研究了不锈钢模具板的化学蚀刻、化学抛光和电镀铬工艺。
Trivalent chromium electroplating not only can reduce pollution obviously and save pollution treatment cost, but also can improve the quality of electroplating products.
三价铬电镀不仅可明显减少电镀对环境的污染，节省大量的污染治理费用，而且还可提高电镀产品的质量。
Chromium electrodeposit with high hardness, wearability, corrosion resistance and distinctive appearance was widely applied in electroplating sector.
镀铬层具有高硬度、耐磨、耐蚀和独特的外观，在电镀行业中应用广泛。
The chromium deposition velocity of trivalent chromium electroplating was researched.
对三价铬电解液镀铬的沉积速度进行了实验研究。
Chromium, a common pollutant in surface water and groundwater, is widely used in electroplating, leather tanning, and corrosion protection.
铬是地表水和地下水中的常见污染物，它被广泛应用于电镀、制革和防腐。
Different metals are separated from the electroplating sludge by roasting and copper, nickel and chromium were recovered with suitable methods such as removing iron by sodium jarosite precipitation.
该工艺采用焙烧法将污泥中的金属组分同类分离，并结合黄钠铁矾沉淀法去除杂质铁等工艺对铜、镍、铬进行了回收利用。
By the reduction on industrial Chromic anhydride-methanol, the trivalent chromium main salt was made. The technological formula and standard of Chromium-Nickel alloy electroplating were given.
采用工业铬酐-甲醇还原法制备三价铬主盐，给出了电镀铬-镍合金工艺配方与工艺规范并对镀层性能进行了测试。
For the sake of treating chromium waste from the electroplating workshop, experiments on the electrolytic method of removing chromium were carried out.
为了处理电镀车间排出的含铬废水，进行了电解法除铬的小型试验。
Hexaalent chromium compounds are often used in electroplating, leather tanning, and textile manufacturing and hae been found in some drinking water sources.
六价铬化合物常用于电镀，制革及纺织制造，还存在于一些饮用水水源中。
A new fluorimetry was used to determine the trace element of chromium in the electroplating waste liquor and chromium electroplating solution.
拟定了一个测定电镀废液和镀铬液中痕量铬的新的荧光分析法。
The technics can been applied to surface treatment of chemical etching, chemical polishing and chromium electroplating for different kinds of stainless steel.
该工艺可以用于各种类型不锈钢的化学蚀刻、化学抛光和电镀铬处理。
The toxicity of chromium is related to its oxidation states, and the primary typical pollutant in chromium-containing electroplating waste water is hexavalent chromium.
铬的毒性与其存在状态有关，六价铬是电镀含铬废水中的主要特征污染物。
Meanwhile, the thought of using new technique of evaporate and compress-clean-reuse to harness electroplating waste water containing cyanogen and chromium compound is presented.
同时，提出了采用“蒸发浓缩—净化—回收利用”处理电镀含铬含氰废水的初步思路。
The major advantages and disadvantages of trivalent chromium electroplating were introduced.
介绍了三价铬镀铬的主要优点与缺点。
The method of chemical deoxidization was used to treat electroplating wastewater which contains chromium ions, and sodium pyrosulfite was used as reducing agency.
采用化学还原法处理含铬离子污水，焦亚硫酸钠作还原剂。
It has a remarkable effect in treating chromium containing wastewater and zinc, copper, cadmium cyanide, phosphorous, oil, etc. in mixed electroplating wastewater.
对电镀含铬废水及混合废水中的锌、镍、铜、氰化物、磷、油等污染物有显著的治理效果，是较理想的电镀混合废水治理新工艺。
The main pollutants from electroplating enterprises of township and village industries (TVIs) in China are cyanide and chromium.
电镀分有氰电镀与无氰电镀两类。乡镇工业电镀行业的环境污染最主要是氰污染和铬污染。
The technics of chemical etching, chemical polishing and chromium electroplating for stainless steel mould were studied.
采用化学蚀刻法测定了氚在不锈钢材料中的纵向分布。
The technics of chemical etching, chemical polishing and chromium electroplating for stainless steel mould were studied.
采用化学蚀刻法测定了氚在不锈钢材料中的纵向分布。
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