Nutrients requirements in biological industrial wastewater treatment

Ammary, Bashaar Y.

doi:10.5897/ajb2004.000-2042

Cited by 110 publications

(16 citation statements)

References 4 publications

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“…Total organic nitrogen levels ranged from 42mg/L to 417mg/L with a mean of 193.09mg/L (STD±63.02) and total phosphorus levels ranged from 28.2mg/L to 175.00mg/L with a mean of 193mg/L (STD63.02). This leads to a mean CNP ratio of roughly 100:4:2 which makes it much more ideal for the subsequent aerobic treatment where a CNP ratio of 100:5:1 is desired (Ammary, 2004) and thus reduces the need for excessive chemical treatment. ISSN 2164-7682 2017 Sulphate continued to be relatively low compared to COD.…”

Section: Treated Wastewatermentioning

confidence: 99%

Performance of a UASB Effluent Treatment Plant Treating Malt Ingredient Manufacturing Wastewater

Cairns¹,

Mead

2017

EMSD

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Anaerobic Digestion has gained popularity in recent years due to its significant contribution towards achieving waste management and renewable energy targets. One particular technology that has been widely used in the treatment of high strength organic wastewaters across a wide range of industries is upflow anaerobic sludge blankets (UASBs). A malt ingredients manufacturing factory has successfully applied this technology as a cost effective way to treat their high strength effluent, however unlike other industries there is a lack of research regarding the wastewater characterisation or UASB performance at either lab or full scale. This paper aims to address this gap in knowledge and provide information on both the wastewater composition and on the ability of a full-scale mesophilic UASB to treat it over a period of 638 days. Analysis of the wastewater revealed that the manufacture of malt ingredients produces a high strength effluent, which fits within the realms of previously documented wastewaters despite not sharing a similar characterisation profile. Mesophilic UASB has been show to be an effective and robust technology option for the treatment of this type of wastewater displaying steady operational performance even when conditions were in excess of the design limit. Due to the robust operational performance of the plant the main factor limiting total methane production was shown to be the organic loading rate.

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Section: Treated Wastewatermentioning

confidence: 99%

Performance of a UASB Effluent Treatment Plant Treating Malt Ingredient Manufacturing Wastewater

Cairns¹,

Mead

2017

EMSD

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“…Nutrient balance in a biological treatment process is important to ensure optimum process performance. The most important nutrients are carbon (C), nitrogen (N), and phosphorous (P), whereby the maximum microbial activity in an aerobic wastewater treatment requires the C:N:P ratio to be maintained between 100:5:1 and 100:10:1 6 . The usual C/N ratio for collected domestic wastewater would be in the range of 12 to 16, which is categorised as high C/N ratio in this study.…”

Section: Introductionmentioning

confidence: 99%

Performance of wild-Serbian Ganoderma lucidum mycelium in treating synthetic sewage loading using batch bioreactor

Hanafiah

Mohtar

Hasan

et al. 2019

Sci Rep

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The fluctuation of domestic wastewater characteristic inhibits the current conventional microbial-based treatment. The bioremediation fungi has received attention and reported to be an effective alternative to treat industrial wastewater. Similar efficient performance is envisaged for domestic wastewater whereby assessed performance of fungi for varying carbon-to-nitrogen ratios in domestic wastewater is crucial. Thus, the performance of pre-grown wild-Serbian Ganoderma lucidum mycelial pellets (GLMPs) was evaluated on four different synthetic domestic wastewaters under different conditions of initial pH (pH 4, 5, and 7) and chemical oxygen demand (COD) to nitrogen (COD/N) ratio of 3.6:1, 7.1:1, 14.2:1, and 17.8:1 (C3.6N1, C7.1N1, C14.2N1, and C17.8N1). The COD/N ratios with a constant concentration of ammonia–nitrogen (NH3–N) were chosen on the basis of the urban domestic wastewater characteristics sampled at the inlet basin of a sewage treatment plant (STP). The parameters of pH, COD, and NH3–N were measured periodically during the experiment. The wild-Serbian GLMPs efficiently removed the pollutants from the synthetic sewage. The COD/N ratio of C17.8N1 wastewater had the best COD and NH3–N removal, as compared to the lower COD/N ratio, and the shortest treatment time was obtained in an acidic environment at pH 4. The highest percentage for COD and NH3–N removal achieved was 96.0% and 93.2%, respectively. The results proved that the mycelium of GLMP has high potential in treating domestic wastewater, particularly at high organic content as a naturally sustainable bioremediation system.

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“…The treatment of wastewater has become an absolute necessity. An effective and cheap method of purifying and cleaning wastewater before discharging into any other water systems is needed, many techniques for wastewater treatment are known which include biological processes (Bashaar, 2004) and physicochemical processes (Wang, 2004). One of the most promising techniques is based on electrochemical technology which being developed and improved to reduce chemical additions (Sarla, 2012).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Treatment of Electroplating Wastewater Using Carbon and Aluminum Electrodes

M²

2016

Journal of Environmental Science

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Heavy metal ions are frequently of high toxicity and require treatment to allowable standards for wastewater discharge. Electrochemical methods are more suitable for heavy metals removal because they can reduce metal concentration to the ppm range and allow recovery of valuable metal. The aim of this work is to treat electroplating wastewater using the electochemical corrosion of the sacrificial soluble alumnium electodes and insoluble carbon electrode using ferric chloride or alum as coagulant. Several working parameters, such as current intensity, electrode material, pH and time were tested. Results revealed that the best removal was achieved at 30 minutes and a potential difference 15 volt for aluminum electrode and10 volts for carbon electrode with ferric chloride. The removal efficiency percentage for synthetic solution of zinc, copper and nickel is 97.2%, 97% and 96% respectively and for factory sample is 80%, 76.6% and 93.4% using aluminum electrode and for carbon electrode using ferric chloride to 97.5%, 97.2% and 97.1%. and for factory sample is 81.6%, 77.3% and 94.4%. The use of carbon electrode with FeCl3 is more suitable than aluminum electrode due to the dissolution of aluminum ions from electrode in the solution.

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Nutrients requirements in biological industrial wastewater treatment

Cited by 110 publications

References 4 publications

Performance of a UASB Effluent Treatment Plant Treating Malt Ingredient Manufacturing Wastewater

Performance of a UASB Effluent Treatment Plant Treating Malt Ingredient Manufacturing Wastewater

Performance of wild-Serbian Ganoderma lucidum mycelium in treating synthetic sewage loading using batch bioreactor

Electrochemical Treatment of Electroplating Wastewater Using Carbon and Aluminum Electrodes

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