Nutrients requirements in biological industrial wastewater treatment
By B. Ammary. 2004
135 citations recorded by the source corpus.
Wastewaters from olive mills and pulp and paper mill industries in Jordan have been characterized and treated using laboratory scale anaerobic and aerobic sequencing batch reactors, respectively. Nutrient requirements for these two industrial wastewaters were found to be less than what is usually reported in the literature for C:N:P ratio of 100:5:1 for aerobic treatment and 250:5:1 for anaerobic treatment. This was ascribed to the low biomass observed yield coefficients and relatively low removal efficiencies in these wastewaters. It was found that for anaerobic treatment of olive mills wastewater COD:N:P ratio of about 900:5:1.7 was able to achieve more than 80% COD removal. The observed biomass yield was about 0.06 kg VSS per kg of COD degraded. For extended aeration aerobic treatment of pulp and paper mill wastewater COD:N:P ratio of about 170:5:1.5 was able to achieve more than 75% COD removal. The observed biomass yield was about 0.31 kg VSS per kg of COD degraded. In both these wastewaters nutrients were not added. A simple formula is introduced to calculate nutrient requirements based on removal efficiency and observed biomass yield coefficient. Key Words: Olive mill wastewater; anaerobic treatment; aerobic treatment; sequencing batch reactor; biomass yield; nutrient requirement. African Journal of Biotechnology Vol. 3 (4), 2004: 236-238
Subfields: Building and Construction, Organic Chemistry, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/822a58585928a3da958bf64bcf9e18bced85a437
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Building and Construction
In Organic Chemistry
In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- Recent advances in pretreatment of lignocellulosic wastes and production of value added products (2009, background): “Aerobic-anaerobic systems have an upper hand when it comes to degradation of LCW richer in lignin content (Ammary, 2004; Mshandete et al., 2005, 2008) while in aerobic system alone, actinomycete Streptomyces griseus is able to produce high levels of extracellular hydrolytic enzyme that degrade…”
- Treatment of reconstituted textile wastewater containing a reactive dye in an aerobic sequencing batch reactor using a novel bacterial consortium (2012, methodology): “The reconstituted dye effluent was always supplemented with organic nutrients in the mass proportions of C/N/P: 100/5/1 to reconstitute an optimal growth medium for better biomass development [20].”