English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The challenge for water recovery from dye manufacturing wastewaters that contain high salinity and high dye concentration is recovery efficiency and water quality. The permeate flux and water quality mainly reflect the membrane distillation performance in treatments of these wastewaters. This study investigated the effects of Air Gap Membrane Distillation’s (AGMD) operational parameters and its interactions on permeate fluxes and recovered water quality in treatments of real dye manufacturing wastewaters using design of experiments (DOE). The DOE method used the response surface methodology (RSM) of central composite design (CCD) to predict and optimize the permeate flux and recovered water quality. The results showed a reliable predictive model of actual permeate flux (15.5 kg.m −2 .h −1 ) with the adjusted R 2adj  of 0.995 and only 34.4%–73.8% of the theoretical permeate flux because of salt contents’ main effect. The rejection rate of chloride ion (Cl − ), sulfate ion (SO 42- ), and ADMI (American Dye Manufacturers’ Institute) color index from real dye manufacturing wastewaters with high salinity was more than 99,9%. The COD removal rate of raw wastewater (C1) from dye manufacturing was 99,4%. This study help in understanding theoretical and actual membrane flux and the scale-up of a membrane treatment plant.

separation science and technology

Optimization of operational parameters in air-gap membrane distillation using central composite design applied in recovery of dye manufacturing wastewaters