process wastewater effluent Articles

  • Wastewater Treatment Process

    The wastewater treatment process is complex and critical to civilization. In simplest terms, wastewater is water that has been mixed with waste matter. Wastewater can be classified as domestic, municipal, or industrial based upon the source of generation. For instance, domestic wastewater comes from everyday liquid waste, including water used to flush the toilet, to shower, or to wash dishes. ...


    By Brentwood Industries, Inc.

  • Chlorine Disinfection of Blended Wastewater Effluents

     KeywordsBlended Wastewater, Disinfection IntroductionFlow to publicly owned treatment works (POTWs) increases during wet weather events, due to intrusion of storm water into sanitary collection systems and use of combined sewer systems. When such flows exceed the hydraulic capacity of a POTW alternate flow management techniques must be employed to ensure that ...

  • Efficacy of Advanced Oxidation Processes for Elimination of Objectionable Contaminants from Wastewater Effluent

     ABSTRACT Increasing demand for reclaimed water from wastewater treatment facilities has revolutionized the need for awareness of effluent quality and its properties. Wastewater can be made suitable for many reuse applications. Many of these applications for reclaimed water in industry, agriculture, and other beneficial uses have required stricter controls on the effluent quality from ...

  • Inactivation of bacteria and helminth in wastewater treatment plant effluent using oxidation processes

    The contamination of bodies of water by raw and even treated sewage is worrying because pathogens that affect public health and the environment are not fully eliminated in wastewater treatment systems. The disinfection step is an important barrier to adopt to reduce this contamination. However, widely used disinfectants such as chlorine do not guarantee the inactivation of resistant organisms ...


    By IWA Publishing

  • Shrimp Processing Wastewater Treatment

    These jars show the treatibility with Floccin J and wastewater from cooked shrimp. The initial untreated water had a TSS of 1,230 ppm and a BOD of 3,000 ppm. The addition of 0.10 grams of Floccin J in 100ml (8.34 lbs/1,000 gallons) created a tight flock and a very clean effluent water quality. The treated TSS was less than 10 ppm and the BOD was 200 ppm. There was a significant amount of oil ...


    By Integrated Engineers Inc.

  • Optimization of Fenton process for decoloration and COD removal in tobacco wastewater and toxicological evaluation of the effluent

    Decoloration and chemical oxygen demand (COD) removal in tobacco wastewater by Fenton process has been optimized under 25 ± 2 °C. The results showed that the optimal range of conditions were pH 4.13–4.66, Fe2+ 0.29–0.34 g/L and H2O2 ≥ 2.73 g/L. Within this range, up to 95% of colour and 90% of COD was removed. In an enlarged system, setting the optimal conditions as pH 4.50, Fe2+ 0.34 g/L and ...


    By IWA Publishing

  • Poultry Processing Facility Wastewater Treatment

    This chicken slaughter and processing facility has a wastewater system that treats 1.2 MGD. Their process uses ferric chloride as the coagulant, caustic to stabilize the pH and an anionic polymer prior to separation in the DAF units. The facility also does some further processing with addition of seasoning and brines which add TDS/EC to the water. The ferric/anionic polymer combination is ...


    By Integrated Engineers Inc.

  • Upgrading effluent quality with a plastic media based process

    Wastewater treatment plant retrofits worldwide are motivated by two main developments: changes in effluent quality regulations, population growth in certain areas. In recent years, the EU (under directive EEC/271/91) and US (Section 304A of the Clean Water Act) have launched programs for nutrient removal in all ...

  • A pilot scale comparison of advanced oxidation processes for estrogenic hormone removal from municipal wastewater effluent

    This study investigates the oxidation of selected endocrine disrupting compounds (estrone, 17β-estradiol, estriol and 17α-ethinylestradiol) during ozonation and advanced oxidation of biologically treated municipal wastewater effluents in a pilot scale. Selected estrogenic substances were spiked in the treated wastewater at levels ranging from 1.65 to 3.59 μg · ...


    By IWA Publishing

  • Reusing effluent of flue gas desulfurization wastewater treatment process as an economical calcium source for phosphorus removal

    Flue gas desulfurization (FGD) wastewater treatment by conventional neutralization, chemical precipitation and coagulation process removes most suspended solids and heavy metals, and provides an effluent rich in calcium, alkalinity and chloride, which obstructs its reclamation and reuse but is in favor of phosphorus (P) precipitation. The goals of this study were to investigate feasibility of ...


    By IWA Publishing

  • Meat Processing Wastewater Case Study

    Nordfjord Kjott R.A. - Meat Processing Plant - Stryn, Norway The Challenge:  Located deep in the mountains of Stryn,, the original plant consisted of an inlet pump station and Salsnes filter for pretreatment, fat removal and a Salsnes filter for post treatment.  The plant also had 8 concrete tanks which were not in use.  The municipality was faced with equivilent loading ...


    By Biowater Technology AS

  • Domestic wastewater treatment with CEPT-wetlands process

    This study aimed to develop an effective process with less construction and operation cost and with flexibility of meeting different temperature requirements, namely CEPT-construted wetland processes. To reduce the chemical cost for the CEPT process, fly ash was firstly utilised to develop an efficient compound coagulant. The lab-scale experimental results showed that with low Fly Ash Coagulant ...


    By Inderscience Publishers

  • Advanced treatment of effluents from an industrial park wastewater treatment plant by ferrous ion activated persulfate oxidation process

    The advanced oxidation technology, ferrous ion (Fe(II)) activated persulfate (PS) producing sulfate radicals, was used for the advanced treatment of effluent from an integrated wastewater treatment plant in a papermaking industrial park. Separate and interactive effects of PS dosage, Fe(II)/PS ratio and initial pH on chemical oxygen demand (COD) removal were analyzed by the response surface ...


    By IWA Publishing

  • Poultry slaughterhouse wastewater treatment plant for high quality effluent

    This paper assesses a wastewater treatment plant (WWTP) regarding the technology used, as well as organic matter and nutrient removal efficiencies aiming to optimize the treatment processes involved and wastewater reclamation. The WWTP consists of a dissolved air flotation (DAF) system, an upflow anaerobic sludge blanket (UASB) reactor, an aerated-facultative pond (AFP) and a chemical-DAF ...


    By IWA Publishing

  • Treatment of textile effluent using Advanced Oxidation Process and Nanofiltration

    Textile effluent containing two dyes, Cibacron Red (CR) and Cibacron Black (CB) and NaCl was treated using advanced oxidation process and nanofiltration. In Scheme 1, advanced oxidation was followed by NF and in Scheme 2, two-step NF was employed. In Scheme 1, dye concentrations fell below 1 mg/l. In Scheme 2, two-step NF results in permeate concentration less than 1 mg/l of dyes. Salt recovery ...


    By Inderscience Publishers

  • Removal of Cryptosporidium by wastewater treatment processes: a review

    Cryptosporidium is a protozoan parasite that infects humans and various animal species. The environmental stability and the low infectious dose of Cryptosporidium facilitate its transmission by water and food. Discharge of untreated wastewater may result in waterborne or foodborne Cryptosporidium outbreaks, therefore a suitable treatment may prevent its ...


    By IWA Publishing

  • A comparative treatment of bleaching wastewater by physicochemical processes

    The bleaching effluent discharged from a pulp and paper mill contains chlorinated organic compounds which are toxic to living matter. Physicochemical treatments such as coagulation and different advanced oxidation processes (AOPs) were employed for combined bleaching effluent generated from the first two stages (i.e. chlorination and alkali extraction) (pH = 3.5, chemical oxygen demand (COD) = ...


    By IWA Publishing

  • Factors Affecting Cyanide Generation in Chlorinated Wastewater Effluent Matrix

    ABSTRACTFalse positives for cyanide analysis in wastewaters have been reported. We examined the effects of storage time at high pH and of pH adjustments on the cyanide levels. Cyanide levels changed within the holding time allowed by Standard Methods. We also studied the difference in cyanide levels using two disinfection conditions -- breakpoint chlorination and chloramination. Glycine was used ...

  • Rapid Monitoring of Municipal Wastewater Primary Effluent - Case Study

    The primary effluent of a Municipal Wastewater Treatment Plant (MWWTP) is monitored to understand organic loading going to the next stage of treatment, the activated sludge process. This process removes organics via consumption by microorganisms living in the sludge. Knowing the composition of incoming primary effluent is important to prevent organic overloading and improve process optimization ...


    By MANTECH Inc.

  • Sustainable wastewater treatment chemicals in a food processing plant

    A food ingredients manufacturer was using an inorganic aluminium metal salt with pH correction to treat their effluent. This chemical regime refused to give them any real control over their effluent characterisation. Their effluent plant required constant monitoring and adjustment. The inability to control the characterisation of the effluent exiting the site meant non-compliance to the ...


    By Atana Limited

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