Results 11 to 20 of about 614 (250)

Rapid assessment of soil accessible Cr(Ⅵ) in the field by a portable RGB color sensor

open access: yesEcotoxicology and Environmental Safety
Field rapid determination of soil accessible Cr(Ⅵ) is of great significance for on-site assessment and decision-making about the health risks of contaminated sites.
Linyu Guo   +6 more
doaj   +2 more sources

Research of the influencing factors of the immobilized redox mediators accelerating Cr(Ⅵ) reduction by Escherichia coli BL21

open access: yesJournal of Hebei University of Science and Technology, 2017
In order to study the influencing factors of non-dissolved redox mediators on Cr (Ⅵ) bioreduction, the accelerating effect of non-dissolved redox mediators immobilized by cellulose acetate (CA) on the reduction of Cr(Ⅵ) by Escherichia coli BL21 is ...
Jiapeng PING   +4 more
doaj   +2 more sources

In situ Adsorption Technology for Remediation of Cr(Ⅵ) Contaminated Soil [PDF]

open access: yesYankuang ceshi
The commonly used remediation technologies for Cr(Ⅵ) contaminated soil, such as guest soil, reduction, solidification, microbiology, etc., have drawbacks such as high cost, slow efficiency, and secondary oxidation of Cr(Ⅵ).
Zhaoxin ZHANG   +8 more
doaj   +2 more sources

The coordination complex formed by oxalic acid and chromate and the mechanism for enhanced photoreduction of Cr(Ⅵ) under visible-light irradiation

open access: yes能源环境保护
Oxalic acid, which mainly originates from root exudation and plant residue decomposition, is one of the most widely existiug carboxylic acids, and has a dramatic impact on the reduction of chromate in natural waters.
GUAN Yingying   +6 more
doaj   +2 more sources

Evidence for chromium crosses blood brain barrier from the hypothalamus in chromium mice model

open access: yesEcotoxicology and Environmental Safety
It has been shown that exposure to hexavalent Chromium, Cr (Ⅵ), via nasal cavity can have neurotoxicological effects and induces behavioral impairment due to the fact that blood brain barrier (BBB) does not cover olfactory bulb.
Jiuyang Ding   +14 more
doaj   +2 more sources

Adsorption of Cr(Ⅵ) polluted water by Fe3O4@SiO2-APTMS nanocomposites prepared in the presence of ultrasonic irradiation for sustainable water resources utilization. [PDF]

open access: yesUltrason Sonochem, 2023
The research on developing a purification technology for Cr(Ⅵ) polluted water with high efficiency and the low energy consumption is crucial for achieving several Sustainable Development Goals (SDGs).
Zhao D, Liu Y, Wu C.
europepmc   +2 more sources

The characterization of a novel magnetic biochar derived from sulfate-reducing sludge and its application for aqueous Cr(Ⅵ) removal through synergistic effects of adsorption and chemical reduction

open access: yes, 2022
Removal of heavy metals from the aqueous environment via physiochemical adsorption always remains a great challenge owing to the slow kinetics and low removal capacity for the conventional adsorbent.
Yan, Xueqian   +8 more
core   +1 more source

The conditions optimization for removing Cr (Ⅵ) from water by Cellulosimicrobium sp. strain C6 and study on its removal mechanism

open access: yes四川大学学报. 自然科学版, 2021
In order to solve the problem of heavy metal Cr (Ⅵ) pollution in water, a strain with high resistance and removal rate to Cr (Ⅵ) was screened from the soil contaminated by heavy metals near a leather factory in Chengdu. After identification, it was named
GAO Jing-Qi   +6 more
doaj  

Cr(Ⅵ) reduction in aqueous solutions by limonite(褐铁矿处理水中六价铬)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2008
Cr(VI)是土壤和水体中常见的有毒污染物,将Cr(VI)转化为毒性较低的Cr(Ⅲ)是常用而有效的治理方法.本文采用褐铁矿对水中Cr(Ⅵ)进行处理研究,考察了褐铁矿投加量、Cr(Ⅵ)初始浓度、pH值、反应温度、铁矿石粒径大小以及添加不同物质等因素对褐铁矿去除效果的影响.结果表明,褐铁矿对Cr(Ⅵ)有很好的还原去除效果,Cr(Ⅵ)去除效率随褐铁矿用量的增加而增大,随Cr(Ⅵ)初始浓度的增加而减小,pH值越低越有利于反应的进行.铁矿石颗粒的直径越小,比表面积越大,也对反应越有利,而温度对Cr(Ⅵ ...
WUYan-jun(吴燕君)   +4 more
doaj   +1 more source

PENGARUH CURRENT RATIO (CR), DEBT TO ASSET RATIO (DAR), PERPUTARAN PERSEDIAAN (INVENTORY TURNOVER), DAN UKURAN PERUSAHAAN TERHADAP PROFITABILITAS PADA PERUSAHAAN PROPERTY DAN REAL ESTATE DI BEI PERIODE 2012 – 2016

open access: yesGOING CONCERN : JURNAL RISET AKUNTANSI, 2018
The research objective was  to test and analyze the Effect of Current Ratio, Debt to Asset Ratio, Inventory Turnover, Company Size on Profitability in Property and Real Estate Companies listed on the Indonesia Stock Exchange (IDX) for the period 2012-2016 partially or simultaneously. The research used quantitative method.
Silvia, .   +6 more
openaire   +3 more sources

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