Remediation of heavy metal(loid)s contaminated soils - To mobilize or to immobilize?

Über die Adsorption in Lösungen

Effects of textile dyes on health and the environment and bioremediation potential of living organisms

https://www.u-cursos.cl/usuario/7c1c0bd54f14c0722cefc0fa25ea186d/mi_blog/r/Lectura_clase_ingenieria_ambiental.pdf

Arsenic contamination, consequences and remediation techniques: a review

长期以来,对于肿瘤的发病机制,就存在两种意见,一种意见认为,肿瘤的发生是由于基因突变导致的遗传特性改变引起的,另一种意见认为,肿瘤的发生是由于基因表达的失调,即通过表遗传学机制引起的.只是近几十年来,由于癌基因与抑癌基因的发现及对之研究的巨大进步,使得肿瘤表遗传学的研究一直处于遗传学研究的阴影之下而已[1]。

Cancer epigenetics

Ceria associated manganese oxide nanoparticles: Synthesis, characterization and arsenic(V) sorption behavior

Arsenic (As) is a metalloid that poses serious environmental threats due to its behemoth toxicity and wide abundance. The use of arsenic-contaminated groundwater for irrigation purpose in crop fields elevates arsenic concentration in surface soil and in the plants. In many arsenic-affected countries, including Bangladesh and India, rice is reported to be one of the major sources of arsenic contamination. Rice is much more efficient at accumulating arsenic into the grains than other staple cereal crops. Rice is generally grown in submerged flooded condition, where arsenic bioavailability is high in soil. As arsenic species are phytotoxic, they can also affect the overall production of rice, and can reduce the economic growth of a country. Once the foodstuffs are contaminated with arsenic, this local problem can gain further significance and may become a global problem, as many food products are exported to other countries. Large-scale use of rainwater in irrigation systems, bioremediation by arsenic-resistant organisms and hyperaccumulating plants, and the aerobic cultivation of rice are some possible ways to reduce the extent of bioaccumulation in rice. Investigation on a complete food chain is urgently needed in the arsenic-contaminated zones, which should be our priority in future researches.

Arsenic bioaccumulation in rice and edible plants and subsequent transmission through food chain in Bengal basin: a review of the perspectives for environmental health

Combination technology of ceramic microfiltration and reverse osmosis for tannery wastewater recovery

The fly ash (FA) particles were coated with furfuryl palmitate (FP) in different wt% like 1, 2, 3 and 5. The FP coated fly ash particles were incorporated as filler in recycled polypropylene (RPP) matrix composites by melt mixing in 1:1 wt% ratio. The composites were tested for their flexural properties, impact behaviour, dynamic mechanical behaviour and fracture surface. The highest enhancement in properties was observed in 2 wt% FP (FP2) coated fly ash filled composites, where the flexural strength, breaking energy and modulus increased by 6.4%, 64% and 1.4% respectively, with a shift of glass transition temperature to a higher temperature. The surface area and true porosity of the FP2 particles were determined to understand the interfacial phenomenon. Highest impact strength was observed in 1 wt% FP coated fly ash filled composites. So, a renewable, low cost chemical like furfuryl palmitate can be used as an effective coupling agent for fly ash in place of expensive synthetic coupling agents which are more commonly used.

Aniruddha Mukhopadhyay

Papers

Ceria associated manganese oxide nanoparticles: Synthesis, characterization and arsenic(V) sorption behavior

Arsenic bioaccumulation in rice and edible plants and subsequent transmission through food chain in Bengal basin: a review of the perspectives for environmental health

Combination technology of ceramic microfiltration and reverse osmosis for tannery wastewater recovery

Furfuryl palmitate coated fly ash used as filler in recycled polypropylene matrix composites

Graphene oxide–nanobentonite composite sieves for enhanced desalination and dye removal