该菌株能高效彻底还原六价铬。
The strain can efficiently and thoroughly reduce the hexavalent chromium.
镀锌为三价铬钝化及六价铬钝化工艺。
Galvanized to trivalent chromium and hexavalent chromium passivation passivation process.
不包含镉，六价铬，汞，铅。
人们不得不与六价铬共存并从源头上管理它。
We have to live with hexavalent chromium and manage it at the source.
六价铬电镀具有毒性大、环境污染严重等缺点。
Hexavalent chromium plating has weaknesses such as toxicity and environmental pollution.
本文综述了微生物还原处理含六价铬的废水的研究进展。
The research development of microbial reduction of hexavalent chromium in wastewater is described.
六价铬常作为金属板用于制造涂料、燃料、塑料和墨水。
Hexavalent chromium is used to plate metals and to make paints, dyes, plastics and inks.
三价铬及六价铬是食品中微量元素铬的两种主要存在价态。
Trivalent chromium and hexavalent chromium are two main states of the chromium in foods.
实验探讨了粉煤灰活性炭处理六价铬废水的一般规律及影响因素。
In this experiment, some regular patterns and affecting factors have also been discussed.
实验中主要研究以下几点：离子交换对六价铬的去除效果和机理；
This experiment mainly investigates several aspects as follows:the effects and mechanism of removing hexavalent chromium using ion-exchange;
用竹子加工的下脚料制得的竹活性炭，对六价铬废水进行净化处理。
The results showed the bamboo activated carbon had a good effect on treatment of waste water containing Cr(VI).
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。
Hexaalent chromium compounds are often used in electroplating leather tanning and textile manufacturing and hae been found in some drinking water sources.
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。
The toxicity of chromium is related to its oxidation states, and the primary typical pollutant in chromium-containing electroplating waste water is hexavalent chromium.
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。
Hexaalent chromium compounds are often used in electroplating, leather tanning, and textile manufacturing and hae been found in some drinking water sources.
一般来说，干硬击实粉煤灰硬化体中六价铬离子的溶出量较泥浆硬化体的高。
In general, hardened fly ashes compacted at the optimum moisture content are with higher hexavalent chromium leachability than hardened fly ash slurry.
在高温下，用碱性过硫酸钾溶液将水样中三价铬氧化为六价铬，比色测定总铬。
Trivalcnt chromium was oxidized to hexavalent chrome by alkaline potassium persulfate under high -temperature. Then total chromium was measured by colorimetry.
加利福尼亚提出的健康目标是要将由可能由六价铬引起癌症风险降低到百万分之一。
California's proposed health goal is designed to limit possible cancer risk to just one in a million for those exposed to hexavalent chromium.
维生素C向六价铬的电子转移产生了三价铬—一种不能进入细胞内的复合物形式。
This electron transfer from vitamin C to chromium 6 produces chromium 3, a form of the compound that is unable to enter cells.
所有镀种符合ROHS标准，符合国际通用环保标准，铅、镉、汞、六价铬不超标。
All to ROHS standard, plating line with general international environmental protection standards, the lead, cadmium, mercury, hexavalent chromium not to exceed bid.
所有镀种符合ROHS标准，符合国际通用环保标准，铅、镉、汞、六价铬不超标。
All the ROHS standards, in conformity with the plating line with general international environmental standards, lead, cadmium, mercury, hexavalent chromium not to exceed bid.
六价铬电镀工艺存在严重的环境污染问题，利用三价铬镀铬取而代之已经迫在眉睫。
It's urgent to develop the technique of trivalent chromium plating because of the heavy pollution of hexavalent chromium plating.
致癌的铬：世界上很多地方通过铬把兽皮制成皮革，铬在六价化学结构下是强烈致癌物。
CARCINOGENIC chromium: Turning hides into leather in much of the world requires chromium, which in its hexavalent chemical form is a potent carcinogen.
实验表明，沸水萃取法适用于可溶性六价铬的萃取，弱碱萃取法可用于两性金属涂镀层。
The experimental results showed that boiling water extraction is suitable for testing soluble hexavalent chromium compounds and weak alkaline extraction suitable for amphoteric metal coatings.
研究人员发现，铬元素的氧化物由六价铬转变为三价铬，这与画作中的铬黄色日趋变暗有关。
The researchers found that a change in the oxidation state of the element chromium (from chromium 6 to chromium 3) was linked to the darkening of chrome yellow paint.
本发明能迅速有效地去除镀铬废水中的六价铬，且工艺简单、操作方便、成本低，效果好。
The present invention can eliminate six-valent chromium from chromium plating waste water fast, and has simple technological process, convenient operation, low cost and high effect.
吗啉在高温下将六价铬还原为三价铬，通过测定三价铬离子的吸光度，计算出锅炉给水中吗啉含量。
Hexavalent chrome is reduced to trivalent chrome by morpholine under high temperature conditions. Then morpholine content is calculated by detecting the absorbance of trivalent chromic ion.
吗啉在高温下将六价铬还原为三价铬，通过测定三价铬离子的吸光度，计算出锅炉给水中吗啉含量。
Hexavalent chrome is reduced to trivalent chrome by morpholine under high temperature conditions. Then morpholine content is calculated by detecting the absorbance of trivalent chromic ion.
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