Environmental Engineering Reference
In-Depth Information
13
AdvAnced OxidAtiOn PrOcesses,
nAnOfiltrAtiOn, And APPlicAtiOn
Of BuBBle cOlumn reActOr
Sukanchan Palit
Department of Chemical Engineering, University of Petroleum and Energy Studies, Dehradun, India
13.1
intrOductiOn
Environmental engineering is moving toward the next generation of science and technology. The advanced oxidation process
(AOP) is a major water treatment and waste treatment procedure. Due to strict and stringent environmental restrictions and reg-
ulations, scientists are keen on discovering newer and novel environmental engineering procedures. So, AOPs or membrane
separation procedures are opening up new windows of innovation in this age of green technology. The world of imagination has
brought the scientific age to a new reality. Integration of various AOPs for wastewater treatment has opened up exciting and
exhilarating insights for the scientific community. Our aim in this chapter is to outline in a far-reaching review and experimental
validation the importance of various AOPs, the potential of nanofiltration, and the applications of a visionary tool—the bubble
column reactor. Our basic aim is to outline the importance of AOPs and nanofiltration of dye wastewater and integrate them
with applications of a bubble column reactor.
13.2
visiOn Of AOP
The vision of a scientist is versatile and inspiring. Research, scientific vision, and scientific steadfastness has compelled scien-
tists to strive further. The world of chemical engineering and environmental engineering is ushering in a new global era, and a
new world of scientific research is emerging. The scientific vision and immense scientific understanding of advanced oxidation
processes (AOPs), nanofiltration, and bubble column reactors is awesome, ever-growing, and far-reaching. The basic advan-
tages of a bubble column reactor are that it has feasible hydrodynamics and excellent heat and mass transfer characteristics.
Extensive research work is being undertaken by scientists, researchers, and the learned scientific community. The world of the
unknown is opening up to a new age and a new vision. Environmental restrictions and stringent regulations are the forerunners
of this scientific vision.
AOPs comprise a promising and challenging technology for the treatment of wastewaters containing organic compounds that
are not easily removable. All AOPs are designed to produce hydroxyl radicals, which act with high efficiency to destroy organic
compounds. AOPs combine ozone(O
3
), ultraviolet (UV), hydrogen peroxide (H
2
O
2
), and/or a catalyst to offer a powerful water
treatment solution for the reduction and/or removal of residual organic compounds as measured by chemical oxygen demand
(COD), biological oxygen demand (BOD), or total organic carbon (TOC). This chapter delineates in detail a general review of
