Distinct chemical contaminants induce the synthesis of Hsp70 proteins in green microalgae Desmodesmus subspicatus: Heat pretreatment increases cadmium resistance

2010 ◽  
Vol 35 (5) ◽  
pp. 239-244 ◽  
Author(s):  
Stefan Tukaj ◽  
Zbigniew Tukaj
Keyword(s):  
Green Microalgae ◽  
Cadmium Resistance ◽  
Chemical Contaminants ◽  
Heat Pretreatment ◽  
Desmodesmus Subspicatus

scholarly journals Growth of Desmodesmus subspicatus green microalgae and nutrient removal from sugarcane vinasse clarified by electrocoagulation using aluminum or iron electrodes

DYNA ◽  
2019 ◽  
Vol 86 (211) ◽  
pp. 225-232
Author(s):  
Mauricio Daniel Montaño Saavedra ◽  
Flávia Paschino Bissoto ◽  
Roniel Augusto De Souza ◽  
Viktor Oswaldo Cárdenas Concha ◽  
Reinaldo Gaspar Bastos
Keyword(s):  
Electrode Materials ◽  
Biomass Productivity ◽  
Green Microalgae ◽  
Chemical Production ◽  
Microalgae Cultivation ◽  
Iron Electrodes ◽  
Desmodesmus Subspicatus ◽  
High Turbidity ◽  
Ph Neutralization ◽  
Sugarcane Vinasse

Sugarcane ethanol production generates considerable quantities of vinasse, its main wastewater. Microalgae cultivation is a promising option for effluent remediation, since the generated biomass can be feedstock for biofuel and bio-based chemical production. Due to vinasse high turbidity, pretreatment is necessary to clarify this effluent, adapting it as a mixotrophic culture medium. In this context, the present research evaluated the integrated process of electrocoagulation (EC) of sugarcane vinasse with aluminum or iron electrodes and subsequent cultivation of green microalgae Desmodesmus subspicatus. Results indicate pH neutralization and high turbidity removal efficiency by EC with both electrode materials. Aluminum EC and subsequent microalgae cultivation removed 66 and 75% of initial total organic carbon and total nitrogen, respectively, with biomass productivity of 1.45 g L-1day-1 and maximum specific growth rate of 0.095 h-1. Microalgae productivity was inferior in vinasse pretreated by iron EC, suggesting possible interference of ferric compounds in the microalgal development.

Heat pretreatment increases cadmium resistance and HSP 70 levels in Baltic Sea mussels

2000 ◽  
Vol 48 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Michael Tedengren ◽  
Björne Olsson ◽  
Olof Reimer ◽  
Drew C. Brown ◽  
Brian P. Bradley
Keyword(s):  
Baltic Sea ◽  
Hsp 70 ◽  
Cadmium Resistance ◽  
Heat Pretreatment

Metal Biosorption by Cochliobolus lunatus with High Cadmium Resistance

2013 ◽  
Vol 19 (4) ◽  
pp. 694-698 ◽  
Author(s):  
Hong FENG ◽  
Yongtao LI ◽  
Gan ZHANG ◽  
Chunling LUO
Keyword(s):  
Cadmium Resistance ◽  
Metal Biosorption ◽  
Cochliobolus Lunatus

Development of Nanomaterials as Photo Catalysts for Environmental Applications

2020 ◽  
Vol 09 ◽  
Author(s):  
Ahmed M. Abu-Dief ◽  
W. S. Mohamed
Keyword(s):  
Water Purification ◽  
Smart Materials ◽  
Block Size ◽  
Industrial Applications ◽  
Vital Role ◽  
High Catalytic Activity ◽  
Chemical Contaminants ◽  
Environmental Threats ◽  
Photo Catalysis ◽  
Materials Used

Abstract:: Sustainability environmental lack is a growing and pivotal mater due to the issues: such as disturbances associated with biodiversity pollution, and climate change. Pollutants are the major cause of these environmental threats in the atmosphere. In recently, the nano-based photocatalyst is at the forefront of the author's interest because of its promising potential as a green chemical-based compound, high catalytic activity, the suitable and controllable surface area for wastewater treatment. Semiconductor materials in nanosized scale have electronic and optical properties depend on its building block size, which plays a vital role in developing smart materials that are well efficient for simultaneously destroying harmful chemical contaminants from our environment. This makes these materials used in many possible industrial applications such as water purification. In this Review, we report the most significant results contributing to progress in the area of environmental hazardous pollutant detection and removal focused on water purification especially through photo-catalysis to give readers an overview of the present research trends. Moreover, we analyze previous studies to indicate key principles of photo-catalysis and provide guidelines that can be used to fabricate more efficient photocatalysts.

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