Grey water treatment in a series anaerobic – Aerobic system for irrigation

Abu-Ghunmi, Lina; Zeeman, G.; Fayyad, Manar; Lier, Jules B. van

doi:10.1016/j.biortech.2009.07.056

Cited by 55 publications

(16 citation statements)

References 23 publications

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“…The source of the grey water used for this study, as in Abu Ghunmi et al ( , 2010, was the waste streams of shower, laundry and washbasins discharged into a single outlet pipe of a 150-female dormitory at the Jordan university campus. As described in Abu Ghunmi et al (2010) the outlet pipe was retrofitted so that it discharged the wastewater, 7 m 3 , directly into the pilot plant.…”

Section: Grey Water Source and Samplingmentioning

confidence: 99%

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Grey water biodegradability

et al. 2010

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Knowing the biodegradability characteristics of grey water constituents is imperative for a proper design and operation of a biological treatment system of grey water. This study characterizes the different COD fractions of dormitory grey water and investigates the effect of applying different conditions in the biodegradation test. The maximum aerobic and anaerobic biodegradability and conversion rate for the different COD fractions is determined. The results show that, on average, dormitory grey water COD fractions are 28% suspended, 32% colloidal and 40% dissolved. The studied factors incubation time, inoculum addition and temperature are influencing the determined biodegradability. The maximum biodegradability and biodegradation rate differ between different COD fractions, viz. COD ss , COD col and COD diss . The dissolved COD fraction is characterised by the lowest degradation rate, both for anaerobic and aerobic conditions. The maximum biodegradability for aerobic and anaerobic conditions is 86 and 70% respectively, whereas the first order conversion rate constant, k 20 , is 0.119 and 0.005 day -1 , respectively. The anaerobic and aerobic conversion rates in relation to temperature can be described by the Arrhenius relation, with temperature coefficients of 1.069 and 1.099, respectively.

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Section: Grey Water Source and Samplingmentioning

confidence: 99%

“…As described in Abu Ghunmi et al (2010) the outlet pipe was retrofitted so that it discharged the wastewater, 7 m 3 , directly into the pilot plant. An Auto-sampler collected daily composite samples from the inlet pipe of the pilot plant.…”

Section: Grey Water Source and Samplingmentioning

confidence: 99%

Grey water biodegradability

et al. 2010

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“…However, some state regulations do include kitchen water in their definition of graywater . Graywater can be used for a wide variety of nonpotable applications such as toilet flushing, irrigation, window washing, car washing, or groundwater recharge (Abu Ghunmi et al, 2010;Friedler and Hadari, 2006;Jefferson et al, 2000;Kraume et al, 2010;Nolde, 2000;Zaneti et al, 2012). The simplest graywater reuse practice is residential landscape irrigation, as it requires very little treatment compared with more complex applications, such as toilet flushing, where human contact with graywater is likely and treatment, including disinfection, is required .…”

Section: Introductionmentioning

confidence: 99%

Potential Changes in Chemical Soil Quality Resulting from Graywater Recycling for Landscape Irrigation

Negahban-Azar

Sharvelle

2018

Water Environment Research

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The effects of graywater irrigation on soil chemical properties, and the accumulation of surfactants and antimicrobials, were investigated at three households in Arizona, California, and Colorado over the duration of two to three years. No negative effects were observed, with respect to sodium and boron accumulation in soil, over the duration of this study. Graywater irrigation significantly increased organic matter and total inorganic nitrogen of the receiving soil (P < 0.05). Graywater loading rates and fertilizer application should be monitored to ensure that excessive amounts of nitrogen and phosphorus are not applied to the soil. Notable concentrations of antimicrobials were detected in surface soil samples. It is suggested that the effect of antimicrobials on soil microbial health, and the potential for formation of antibiotic-resistant genes, be further investigated. Surfactant concentration in soil samples substantially increased after graywater application, compared with baseline samples, and then remained fairly constant over time.

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“…Although many technologies can be used to treat wastewater [11][12][13][14][15], biological treatment is recognized as one of the cost-effective methods [14] and [16]. This treatment method relies on microbial consortia, with bacterial cells being the chief component [11] and [17].…”

Section: Introductionmentioning

confidence: 99%

Aspergillus niger-mediated bioremediation of Triton X-100-contaminated resources

Abu-Ghunmi

Al-Khatib

Alkhawaldeh

2015

Desalination and Water Treatment

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A B S T R A C TWater shortage, water pollution and climate changes are highly interrelated global issues. These have raised immense concerns about possible serious adverse effects on the quality, treatment and reuse of wastewater. This research aims to investigate the potential impact of Triton X-100 on the soilborne fungus Aspergillus niger (A. niger) as well as the ability of this organism to remove Triton X-100 from contaminated wastewater. We found that 2,250-6,000 mg/L Triton is toxic toward A. niger with irreversible effects, whereas 23-2,000 mg/L is inhibitory toward A. niger with reversible effects. These concentration ranges vary with initial concentrations of Triton and A. niger as well as with the contact time. At an initial concentration of 228 and 2,152 mg/L, A. niger can remove 20 and 28%, respectively, of Triton by day 1, which increase to 28 and 38%, respectively, by day 3. Another experiment showed that at an initial concentration of 50 and 100 mg/L, A. niger can biodegrade 29 and 15%, respectively, of Triton by day 1, which further increases to 87 and 34% by day 15. Adsorption and biodegradation are the mechanisms employed by the organism for Triton removal. Thus, A. niger can enhance biological treatment of wastewater.

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Grey water treatment in a series anaerobic – Aerobic system for irrigation

Cited by 55 publications

References 23 publications

Grey water biodegradability

Grey water biodegradability

Potential Changes in Chemical Soil Quality Resulting from Graywater Recycling for Landscape Irrigation

Aspergillus niger-mediated bioremediation of Triton X-100-contaminated resources

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