Electrokinetic remediation of inorganic and organic pollutants in textile effluent contaminated agricultural soil

Avaliação Da Qualidade De Um Afluente Utilizado Para Irrigação Na Região Semiárida De Pernambuco (Nordeste Do Brasil)

“…Entre os principais metais ligados aos corantes são o cobre, cromo, colbato e níquel. Desta forma, os corantes são formados a partir de ligações químicas entre o metal e a molécula orgânica, determinando a fixação da cor no tecido (ANNAMALAI et al, 2014).…”

Coupled Electrochemical Processes for Removing Dye from Soil and Water

“…22 The graphite electrodes were connected to a direct current (DC) electric power source (MINIPA-3305 M) by applying 1.0 V cm −1 during 14 d. The central compartment was filled with the contaminated , it was used to promote the increase of soil conductivity and consequently, decreasing the treatment time and costs, as already reported in the existing literature. 12 Electrical current, conductivity, pH, SDS concentration, chemical oxygen demand (COD) and dye removal were monitored during the ER treatment as well as the electro-osmotic liquid volume transported from the cathode collector to the anodic reservoir as well as the germination of the plant. The soil sample was divided into sixteen portions after 14 d of treatment.…”

“…Based on the existing literature, 15 the efficacy of ER depends on the operating conditions, but it can be improved by adding surfactants and/or salts in the solutions used as supporting electrolytes. 12,[16][17][18] In this frame, this work aims to investigate, for the first time, the applicability of ER to eliminate azo dye, methyl orange (MO) as model the pollutant, from real soil sample by using sodium sulfate and SDS, as mobility promoters. After that, the toxicity of residual organic compounds was evaluated in the soil after treatment by the sunflowers (Helianthus Annuus) survival capacity 19 in order to propose the safe reuse of the soil.…”

The study on preparation and photocatalytic activities of Cu 2 O/TiO 2 nanoparticles

“…Environment problems related to the remediation of hazardous wastes and contaminated waters is a serious problem faced by most of the developing and industrialized countries in the world [1][2][3]. However, conventional approaches to the destruction or transformation of hazardous chemical wastes, such as high temperature incineration [4,5], amended activated sludge digestion [6], anaerobic digestion [7,8], and conventional physicochemical treatment [9,10], determined to be insufficient or exhibit drawbacks [11], such as producing a more concentrated pollutantcontaining phase, are unsatisfactory for purifying the wastewater after textile dyeing and washing [12,13].…”