A rapid natural organic matter (NOM) fractionation tool was developed to enable
NOM to be classified by hydrophobicity at the water treatment works and in the
catchment. This fractionation method uses XAD adsorption ...
Removal of fats, oils and greases (FOG) from commercial food premises prior to discharge of wash waters into the sewer is critical in restricting blockage events. The FOG droplets that form are commonly removed in passive ...
A pilot scale baffled anaerobic waste stabilisation pond (aWSP) was designed based
on an organic loading of 0.17 kg COD m-3 d-1 to evaluate the potential of aWSP as a
passive, sustainable technology for domestic wastewater ...
Pesticides make important contributions to modern agriculture. However, diffuse transfers of pesticide from agricultural land to surface water can lead to significant compliance failures in drinking water supplies under ...
The fat, oil and grease (FOG) problem may be the 21st Century’s ‘perfect storm’: an outcome of urbanisation, population and economic growth, compounded by changing weather patterns causing inundation and exceedance of ...
Natural organic matter has become an increasing concern in drinking water treatment,
because of the potentially carcinogenic disinfection by-products that form when
disinfectants react with the residual organic carbon ...
Cheswick, Ryan Ashley(Cranfield UniversitySWEE, 2019-02)
Chlorine disinfection is a process that has been in use for over a century for drinking
water treatment; however rare detections of faecal indicator organisms in final treated
water still occur. Assessing the performance ...
Disinfection by-products (DBPs) in drinking water are formed when natural organic matter (NOM) that remains after initial treatment reacts with disinfectants, such as chlorine or chloramines. DBPs, which are of health ...
Phosphorus is not only a non-renewable resource but also a major cause of eutrophication in natural environments. Accordingly, legislation aims to control point source discharges from wastewater treatment with new targets ...
Water recycling is now widely accepted as a sustainable option to respond to the
general increase of the fresh water demand, water shortages and for environment
protection. Because greywater represents up to 70% of ...
Knops, Geraldine Jane Augustine(Cranfield University, 2010-03)
The performance of an MBR under chemical shock loading conditions was
investigated, to ascertain the robustness of the treatment system for urban
water reuse. 32 household products and industrial substances, likely to ...
Mergen, Maxime Rodolphe Denis(Cranfield University, 2008-01)
Seasonal periods of high rainfall and changes in land management have led to
difficulties for UK water companies to remove sufficient natural organic matter
(NOM) to stay in compliance with the tightening trihalomethane ...
The
removal of natural organic matter
(NOM)
at water treatment works
(WTW) is
essential in
order to prevent toxic compounds forming during
subsequent disinfection.
Coagulation
and
flocculation
processes remain ...
Cairns, Peter Ryland(Cranfield UniversitySAS, 2008-09)
Increased regulatory pressure to meet THM standards with the possible introduction
of HAA regulations means that organic matter, the predominant DBP precursor needs
to be removed effectively from site whilst coping with ...
Buñol i Tordera, Ramon(Cranfield UniversitySAS, 2009-09)
The primary objective of integrated fixed film activated sludge (IFAS) is to remove
dissolved pollutants from wastewater. This process allows an increased treatment
capacity in comparison with conventional activated ...
Chlorine was first used to disinfect drinking water in the US as early as 1908 with other disinfectants, ozone, chlorine dioxide to follow. However, it wasn’t until the 1970’s that Rook discovered a possible link to higher ...
The size, density and strength of floes play a major role in the removal of contaminants
from water in physico-chemical treatment processes. The efficiency of the main
removal processes is a function of floe size, strength ...
The development of more efficient methods of membrane-based gas absorption has
recently received considerable interest in two areas: the biological treatment of
contaminated gas streams and the abiotic gas absorption of ...
Poly-di-methyl-siloxane (PDMS) hollow fibre membrane modules were designed and built for the specific de-gassing of real and synthetic process liquids to understand: (i) the feasibility of operation; and (ii) classify the ...
Rapid media filtration is used to treat most surface water sources for municipal
drinking water supply. This thesis presents results of an investigation into how
media filters in Scottish Water, built decades ago to ...