WSPs are widely used in North America, and offer huge potential for other continental climate regions. The standard design and operating protocol is robust even at high latitudes, but may be conservative elsewhere. A simple model based on first-order kinetics for biochemical oxygen demand (BOD) is used to consider some alternative design and operating protocols, using long-term daily climate re...

background low-cost anaerobic sequencing batch reactor (asbr), which is widely used for controlling high-organic wastewater, is an effective method to remove chemical oxygen demand (cod). objectives the main objectives was evaluating the feasibility of using asbr in the treatment of synthetic dairy wastewater, determining its removal efficiency, and assessing the effect of temperature on operat...

Abstract Reliance on biochemical oxygen demand (BOD5) as an indicator of wastewater quality has hindered the development efficient process control due to associated uncertainty and lag-times. Surrogate measurements have been proposed, with fluorescence spectroscopy a promising technique. Yet, assessment in-situ sensors across multiple treatment plants (WwTPs), at different stages, is limited. I...

Atmospheric reaeration process plays a key role in degradation of organic matter and self-purification processes affecting dissolved oxygen (DO) concentrations rivers streams. Moreover, water quality (WQ) can be highly dependent on flow velocity conditions. Where, rates are positively correlated with high velocity. Therefore, the present work reports deep insights concentration DO biochemical d...

The study presents the research results on rejected water generated in dewatering sludge stabilised Autothermal Thermophilic Aerobic Digestion (ATAD) technology. was carried out three municipal wastewater treatment plants (WWTPs), with a capacity of 1500 to 3260 m3 d?1 and node 835 2000 kg DM d?1. mean content Kjeldahl nitrogen (TKN) samples taken from each object ranged 485 1573 mg N L?1, ammo...

Abstract Three pilot systems of a constructed wetland were assessed to advance the urban reuse greywater for household gardening in areas world representative Africa's Sahel (one unplanted and two planted with local species, namely Andropogon gayanus Chrysopogon zizanioides). Principal component analysis showed provided higher removal efficiencies than system A. performed better treating most w...

This study utilized MIKE 11 to quantify the spatio-temporal dynamics of water quality parameters (Biochemical Oxygen Demand (BOD5), Dissolved (DO) and temperature) in Long Xuyen Quadrangle area Vietnamese Mekong Delta. Calibrated for year 2019 validated 2020, developed model showed a significant agreement between observed simulated values parameters. Locations near cage culture areas exhibited ...

Water scarcity, inappropriate sanitation and wastewater pollution are critically important global issues. Greywater is a sustainable water source for recycling, so this thesis examined simple, robust, low-cost alternatives for on-site treatment of greywater to irrigation water quality. Laboratory-scale pine bark, activated charcoal and sand filters were evaluated as regards their pollutant remo...