Results 31 to 40 of about 3,337,638 (242)

The Relationship between pH and Heavy Metal Ion Sorption by Algal Biomass

open access: yesAdsorption Science & Technology, 2003
The relationship between pH and heavy metal ion sorption by the biomass of two algal species was studied under controlled experimental conditions. It was observed that increasing heavy metal ion sorption by algal biomass with pH mainly arose from a ...
Ying-Zhong Tang   +2 more
doaj   +1 more source

Study on the physical and chemical properties of lead passivating agent in soil

open access: yesScientific Reports, 2023
With the rapid development of industry, heavy metal pollution has seriously damaged the health of soil, and heavy metals spread through the food chain, posing a threat to human health. The firm existence of heavy metals in soil under earthy conditions is
Chengyu Han, Juan Li, Jianglong Shen
doaj   +1 more source

The Development of Ionophore-Selective Based optical chemical sensors for the determination of heavy metal ions in aqueous environments [PDF]

open access: yes, 2010
The development of optical sensors for in-situ, real-time and low-cost monitoring of heavy metal ions is a tremendously and fast growing area of research.
Li, Li
core   +2 more sources

Experimental study on solidification/stabilization of heavy metal lead and chromium sludge solidified by cement-based materials [PDF]

open access: yesMATEC Web of Conferences, 2023
To explore the strength change law and solidification mechanism of cement solidified heavy metal lead and chromium contaminated soil, ordinary Portland cement (OPC) and magnesium phosphate cement (MPC) were used for solidification/stabilization treatment.
Zheng Chao   +3 more
doaj   +1 more source

Anthropogenic heavy metals in organic forest soils [PDF]

open access: yes, 2006
The continuous heavy metal accumulation in organic topsoils in forests will pose problems for soil microbial health for many years to come. The primary objective of this thesis was to investigate heavy metal pollution in forest soils and its effects on ...
Åkerblom, Staffan
core   +1 more source

Adsorption of Copper, Zinc and Nickel Ions from Single and Binary Metal Ion Mixtures on to Chicken Feathers

open access: yesAdsorption Science & Technology, 2002
Certain industries often produce mixtures of heavy metal ions in their waste products. Because of the nature of heavy metal ions and the adsorption process, such metal ions can compete with each other for the sorption sites on an adsorbent during ...
Sameer Al-Asheh   +2 more
doaj   +1 more source

Application of Ion Exchange Resin Capsules in Water Pollution Source Investigating in Taichung Area, Central Taiwan

open access: yesEngineering Proceedings, 2023
In central Taiwan, due to the complex urban regions and the distribution of industrial and agricultural areas, there are high potential risks of irrigation water pollution caused by urban drainage or industrial wastewater.
Yun-Wei Tan, Feng-Wen Chen
doaj   +1 more source

Pyridine Derivatives as Fluorescent Sensors for Cations

open access: yesChemistry Proceedings, 2023
A fluorescence grating sensor based on a pyridine derivative was synthesized. The results showed that it can rapidly identify and detect toxic heavy metal ions, such as Cr2+, Hg2+, Ni2+ and Co2+.
Ikram Baba-Ahmed   +6 more
doaj   +1 more source

Long-term field metal extraction by pelargonium:phytoextraction efficiency in relation to plant maturity [PDF]

open access: yes, 2011
The long length of periods required for effective soil remediation via phytoextraction constitutes a weak point that reduces its industrial use. However, these calculated periods are mainly based on short-term and/or hydroponic controlled experiments ...
Arshad, Muhammad   +7 more
core   +1 more source

The migration process and temperature effect of aqueous solutions contaminated by heavy metal ions in unsaturated silty soils

open access: yesHeliyon
Adsorption-desorption experiments of three heavy metal ions (i.e., lead, copper, cadmium) in silty soil were carried out at different temperatures, and the microscopic characteristics of silty soil loaded with the three heavy metal ions were analyzed.
Bing Bai, Fan Bai, Jianpeng Hou
doaj   +1 more source

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