Selective removal and recovery of Black B reactive dye from simulated textile wastewater using the supported liquid membrane process

Abstract

Effluent containing colour/dyes, especially reactive dyes, becomes a great concern of wastewater treatment because it is toxic to human life and aquatic life. In this study, reactive dye of Black B was separated using the supported liquid membrane process. Commercial polypropylene membrane was used as a support of the kerosene-tridodecylamine liquid membrane. Several parameters were tested and the result showed that almost 100% of 70 ppm Black B was removed and 99% of 70 ppm Black B was recovered at pH 2 of the feed phase containing 0.00001 M Na2SiO3, flow rate of 150 ml/min and 0.2 M NaOH. The membrane support also remained stable for up to 36 hours under an optimum condition.

Removal and Recovery of Chromium(vi) Ion via Tri-N-Octyl Methylammoniumchloride-Kerosene Polypropylene Supported Liquid Membrane

“…Removal and recovery mechanism of chromium ion by TOMAC a) The carrier, TOMAC in the membrane phase react with the stripping agent, NaOH at the membrane-internal interface as represented in Equation (5) . Therefore, at the feed-membrane interface, hydrochromate ions chemically react with both types of carrier as shown in Equation (6) and (7) (7) c) The formation of R 4 N-HCrO 4 complex diffuse across the membrane phase from feed-membrane interface to the membrane-internal interface reversibly, where the stripping reaction take place with stripping agent, NaOH as shown in Equation (8). The created complex HCrO 4 Na is insoluble in the membrane phase and will not diffuse back to the feed phase.…”

“…Liquid membrane technology has attracted much interest for its potential impact in the fields of separation processes because the main advantage of liquid membrane configuration treatment is a single step process, in which removal and recovery processes occur simultaneously [6,7]. This technique also provides high efficiency in separation and selectivity toward the desired solute as reported by Harrudin et al [8]. Liquid membrane technologies have been commonly used to separate and recover many types of metals from diluted solutions.…”

Green Approaches to Sample Preparation Based on Extraction Techniques

“…Afterwards, the acceptor phase is introduced into the analytical instrument of choice for the analysis. Examples of the use of SLME as an ecofriendly extraction technique include determination of metals in waste water [220], pesticides in water [221], phenols in water samples [222], black B dye in waste water [223] and basic drugs in human plasma [224].…”

Extraction of Glucose by Supported Liquid Membrane using Polyethersulfone Flat Sheet Membrane Support

“…Highest flow rate of 2.79 L/h used was able to improve the degree of glucose extraction significantly to the value of 47.22%. At high flow rate, the boundary layer thickness between the feed and membrane can be reduced and hence promote better mass transfer [26,27].…”