铬渣

结果表明，铬渣具有良好的胶凝活性，矿渣微粉的加入对Cr（Ⅵ）的浸出有良好的控制作用。

The results of this study shows that the chromium residue has good cementitious activity , and Cr (ⅵ) concentrations in the leachate is decreased very much by adding the slag powder in the chromium-cement system .

铬渣对水泥砂浆性能影响的研究

Study on the influence of chromium residue on the performance of cement mortar

用铬渣制备B（104）型片状催化剂新工艺

A new technology of preparation of b_ ( 104 ) catalyst in piece shape with chromium slag

铬渣-煤矸石砖中Cr（Ⅵ）解毒机理研究

Detoxification mechanism of Cr (ⅵ) in chromium residue-coal gangue brick

减水剂对铬渣-水泥硬化浆体中Cr（Ⅵ）渗出的影响

Effect of Water Reducer on Leaching of Cr (ⅵ) from System of Chromium Slag-Cement

铬渣在灰钙土淋溶中铬（VI）吸附量的初步研究

Study on adsorbing capacity of chromium cinder under circumstances of eluviation

Cr（Ⅵ）从铬渣中的浸出过程是一个快速达到平衡的过程。

Cr (ⅵ) from chromium slag in the leaching process is a quick process to reach equilibrium .

铬渣-水泥体系物理性能及其Cr（Ⅵ）的控制研究

Research on Properties of the Chromium-cement System and the Control of Cr (ⅵ) Concentrations in the Leachate

铬渣中Cr（Ⅵ）的控制及其对水泥性能的影响研究

Control of Cr (ⅵ) concentrations in the leachate and research on properties of the chromium & cement system

铬渣因所含Cr（）具有强氧化性而会对环境造成严重污染。

Chromium residue is a hazardous solid waste with strong oxidation and it can cause heavy contamination to our surroundings .

运用X射线衍射仪对铬渣中所含矿物进行研究，可以看出铬渣中主要含有硅酸二钙和铁铝酸四钙，还含有铬酸钙、方镁石、方解石、铬铁尖晶石等矿物。

Through XRD , there are dicalcium silicate , tetracalcium ferrite , calcium chromate , calcite and chromium iron spinel mineral in chromium residues .

POPs的环境污染修复技术及展望铬渣污染场地污染状况研究与修复技术分析

Study on pollution characteristics of contaminated sites with chrome and discussion on common remediation technologies

铬渣是生产金属铬和铬盐所产生的废渣，因其含有超量水溶性Cr（VI）而具有强烈毒性。

Chromium slag is one of the most hazardous solid residue from chromium chemical industry because of the high content of dissolvable Cr ( VI ) .

在铬渣解毒及铬污染土壤修复过程中，降低Cr（Ⅵ）含量或将Cr（Ⅵ）固定是关键。

It is critical to reduce the content of Cr ( VI ) or to fix Cr ( VI ) in the process of COPR detoxification and chromium-contaminated soil remediation .

将铬渣进行微生物柱浸，7d后溶液中检测不出Cr（VI）；

Cr ( VI ) in solution can not be detected when Chromium-containing slag has been column leached by Ch-1 bacteria for 7 days .

在铬渣湿法解毒研究领域，采用何种方式经济有效的浸出铬渣中难溶化合物中的Cr（Ⅵ）是关键。

It is important to choose an economical way to leach the Cr ( VI ) in insoluble compounds of COPR effectively in the research field of wet process of COPR .

用扫描电镜、比表面测定仪、X－射线衍射仪测定了铬渣及解毒铬渣的表面形貌、比表面及物相组成。

The micro-structure , the specific surficial area and the compositions of Chromium slag and detoxicated Chromium slag were measured by using scanning electronic microscope , measuring equipment of specific surficial area and X-ray diffraction equipment .

铬渣及铬污染土壤中含有的Cr（Ⅵ）具有较强的毒性，对环境和人体造成极其严重的危害。

Hexavalent chromium ( Cr ( VI )) present in the chromite ore processing residue ( COPR ) and chromium-contaminated soil causes serious damage to the environment and human health for its high toxicity .

浸泡时间、铬渣粒度、铬渣质量、淋滤用水量和pH值均会影响淋滤液中六价铬浓度和淋出率。

The influence of soaking time , granularity of slag , quantity of slag , volume of water equipment on the concentration and quantity of Cr ( VI ) in the leachate are studied respectively in the experiments .

因历史原因，历史堆存铬渣简单堆存，降雨等导致水溶性Cr（Ⅵ）进入土壤及地下水，对环境造成严重污染。

For history reasons chromium residues were piled up simply , dissolved chromium caused by rainfall and so on can be permeated into surrounding soils and ground waters which generated serious pollution to the environment .

采用连续反应器，考察了铬渣水浸工艺参数，研究了铬渣中Cr（VI）的水浸动力学。

Leaching kinetics of Cr ( VI ) from chromium-containing slag in aqueous solution was studied and the industrial parameters of the leaching process in aqueous solution were investigated by using continuous reactor .

研究了铬渣用量、溶液初始pH值、微波辐照时间、处理后放置时间等因素对溶液TOC去除率的影响。

The effects of chromate residue dosage , initial pH value , microwave irradiation time and placed time of the treated sample on TOC removal efficiency of the methyl orange solution were investigated .

铬渣代替部分白云石，通过烧结、炼铁的煅烧、还原，把有毒的Cr6+还原成金属Cr，可实现铬渣的资源化和无害化。

By substituting chrome-making slag partly for dolomites used in sintering and iron making , the poisonous Cr6 + could be reduced to metal Cr by calcination , thus making the slag harmless and realizing resources recycling .

并首次用非线性方法研究了铬渣样品稀释比中Cr、Ni、Zn、Mn、Fe与X射线强度的线性关系。

It has also been studied that the linear relation between the concentration of each element Cr , Ni , Zn , Mn , Fe and Xray intensity in diluent ratio of chromium slag samples by non-linear method .

表面活性剂对Achromobactersp.CH-1解毒铬渣的影响

Influence of surfactants on detoxification of chromium-containing slag by Achromobacter sp. CH-1

利用固相还原法，选用某种廉价工业废物R作还原剂、S做稳定化剂，进行铬渣解毒处理，对终渣进行放置时间、酸碱度和温度影响稳定性试验。

Both industrial wastes , R and S , were selected as reductive agent and stabilizing agent for chromium slag detoxifying during solid phase reduction . Effects of time , pH and temperature on the stability of the final detoxified slag were tested .

Achromobactersp.CH-1菌解毒铬渣的研究

Detoxification of Chromium-containing Slag with Achromobacter sp. CH-1

本试验对新渣和陈渣的浸出毒性进行了探讨，同时对铬渣中Cr（Ⅵ）进行全量溶取，并分析铬渣中主要阴、阳离子的浸出行为。

Leaching toxicity of the new and old chromium-containing slag was discussed . At the same time the total Cr (ⅵ) in chromium-containing slag was extracted , and the leaching behaviors of the main anion and cation in chromium-containing slag were analysed .

我国是一个铬盐生产大国，每年产生铬渣达600万吨，由于缺乏有效处理设施导致堆存的铬渣释放Cr（Ⅵ）对土壤和地下水造成严重污染。

China is one of major country to produce chromate . A large amount of chromium-containing slag was annually discharged from chromate industries . For lacking of appropriate disposal facilities , the deposition of chromium-containing slag will result in serious soil and groundwater pollution .

处理该废水后得到的钒、铬渣含V1018%，Cr1822%。

After treating the waste fluid , the V-Cr slag contains 10 ~ 18 per cent of V and 18 ~ 22 per cent of Cr.