Dynamic simulation of chemical industry wastewater treatment plants

Bury, Scott J.; Groot, Cornelis; Huth, C.; Hardt, N.A.

doi:10.2166/wst.2002.0623

Cited by 11 publications

(15 citation statements)

References 11 publications

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“…Many materials in the chemical industry are toxic, carcinogenic, mutagenic or simply hardly biodegradable. In chemical industry, the high variability, stringent effluent permits, and extreme operating conditions define the practice of wastewater treatment (Bury et al 2002). Hu et al (1999) proposed a concept to select the appropriate treatment process for chemical industrial wastewater based on molecular size and biodegradability of the pollutants (Hu et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Wastewater management in small- and medium-size enterprises: case studies

2007

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Wastewater management in small and medium-sized enterprises representing the chemical and food industries was investigated. The results showed that wastewater discharged from an ink-production factory was highly contaminated with organic pollutants. Anaerobic biological treatment followed by chemical coagulation using ferric chloride aided with lime proved to be very effective and produced an effluent that complied with national regulatory standard for wastewater discharge into public sewage network. Also, management of wastewater from a confectionery factory representing the food sector was carried out. Aerobic biological treatment using plastic-packed trickling filter proved to be an effective treatment method. However, application of in-plant control measures alleviated the requirement for the construction of a wastewater treatment plant. The applied pollution prevention and cleaner production measures involved good housekeeping, recovery of spent chocolate, modification of floor cleaning and installation of suction devices for the removal of sugar and starch powders. All improvement measures were documented by cost/benefit analysis.

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Section: Introductionmentioning

confidence: 99%

Wastewater management in small- and medium-size enterprises: case studies

2007

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“…In the chemical industry, the high variability, stringent effluent permits, and extreme operating conditions define the practice of wastewater treatment (Bury et al, 2002). Hu et al (1999) proposed the concept to select the appropriate treatment process for chemical industrial wastewater based on molecular size and biodegradability of the pollutants.…”

mentioning

confidence: 99%

“…Because of the fluctuation in the strength and flow rate, Bury et al (2002) applied dynamic simulation to chemical-industry wastewater treatment to manage and control the treatment plant.…”

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confidence: 99%

Chemical industry wastewater treatment

et al. 2007

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Treatment of chemical industrial wastewater from building and construction chemicals factory and plastic shoes manufacturing factory was investigated. The two factories discharge their wastewater into the public sewerage network. The results showed the wastewater discharged from the building and construction chemicals factory was highly contaminated with organic compounds. The average values of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) were 2912 and 150 mgO 2 /l. Phenol concentration up to 0.3 mg/l was detected. Chemical treatment using lime aided with ferric chloride proved to be effective and produced an effluent characteristics in compliance with Egyptian permissible limits. With respect to the other factory, industrial wastewater was mixed with domestic wastewater in order to lower the organic load. The COD, BOD values after mixing reached 5239 and 2615 mgO 2 /l. The average concentration of phenol was 0.5 mg/l. Biological treatment using activated sludge or rotating biological contactor (RBC) proved to be an effective treatment system in terms of producing an effluent characteristic within the permissible limits set by the law. Therefore, the characteristics of chemical industrial wastewater determine which treatment system to utilize. Based on laboratory results engineering design of each treatment system was developed and cost estimate prepared.

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“…13 In short time spans (hours to days), ratios and other model parameters may change drastically. 28 Uncertainties in lab analyses and online measurements (e.g., flow, dissolved oxygen, and ammonium concentration) further complicate the modeling exercise. 28 Bury et al 28 further mention that variable features of the employed wastewater treatment facilities (e.g., different reactor configurations, high operating temperatures, and high salinity) often require case-specific modeling.…”

Section: Modeling and Simulation As Tools For Optimization Of Industrmentioning

confidence: 99%

“…51,194 The variability is manifested in both flows and composition, and flow rate fluctuations of more than 50% due to production changes are not uncommon, though, unlike diurnal loads, they do not follow a regular pattern. 28 Flow values and water quality measurements may vary by several orders of magnitude over a period of one year. 194 Furthermore, highly variable concentrations of different components will make it impossible to achieve a uniform loading for all components.…”

Section: Introductionmentioning

confidence: 99%

Biotreatment of Industrial Wastewaters under Transient-State Conditions: Process Stability with Fluctuations of Organic Load, Substrates, Toxicants, and Environmental Parameters

Sipma

Osuna

Emanuelsson

et al. 2010

Critical Reviews in Environmental Science and Technology

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Biotreatment of industrial wastewater is often challenged by operation under transient states with respect to organic loads, pollutants, and physical characteristics. Furthermore, the potential presence of inhibitory compounds requires careful monitoring and adequate process design. This review describes difficulties encountered in biological treatment of wastewater with highly variable influent characteristics. Typical design aspects of biological processes are presented and discussed with respect to their success in treating highly fluctuating wastewaters. In general, biomass retention is a key factor for dealing with highly fluctuating and/or inhibitory wastewater, but the how it operates also affects the stability of performance, as it was shown that dynamic operation instead of operation at a constant flow enhances biodegradation onset and more evenly distributed activity. Although ultimately stable effluent quality must be achieved, the microbial population stability is not necessarily high, as it was shown that microbial diversity and flexibility may play a critical role in functional stability.

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Dynamic simulation of chemical industry wastewater treatment plants

Cited by 11 publications

References 11 publications

Wastewater management in small- and medium-size enterprises: case studies

Wastewater management in small- and medium-size enterprises: case studies

Chemical industry wastewater treatment

Biotreatment of Industrial Wastewaters under Transient-State Conditions: Process Stability with Fluctuations of Organic Load, Substrates, Toxicants, and Environmental Parameters

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