Zero-Discharge Articles

  • What are the best companies for Zero Liquid Discharge Equipment and Technology?

    With an increasing push for environmental protection, many industrial facilities and effluent regulators are making decisions that lessen their impact on the environment and human health. Changes and implementations are constantly being discussed and met both nationally and internationally to change the way industrial facilities discharge waste, and it is important to know which companies are the ...


    By SAMCO Technologies, Inc.

  • Treating pharmaceutical wastewater - Case Study

    A pharmaceutical facility in the Caribbean had an existing wastewater treatment process that utilized a sequencing batch reactor (SBR). SBRs use large tanks to collect wastewater, then a number of different options can be employed to treat the water (such as chemicals addition, aeration and mixing). When an SBR aerobically breaks waste down, it can produce a high volume of air that needs to be ...


    By QED Environmental Systems

  • How much will a zero liquid discharge system cost your facility?

    With increasing stewardship of environmental protection, both nationally and internationally, many industrial facilities and effluent regulators are strengthening strategies to reduce industrial process waste by implementing zero liquid discharge (ZLD), a process that limits liquid waste at the end of your industrial process to—as the term suggests—zero. A ...


    By SAMCO Technologies, Inc.

  • Ten quotes from our customers about VACUDEST

    Many companies have opted to introduce a policy of zero liquid discharge production using our high-quality VACUDEST vacuum distillation systems. Users can reduce their consumption of fresh water – an increasingly dwindling resource – and significantly reduce their disposal costs by recycling their industrial wastewater. Read on to find out what our customers say about VACUDEST: Ovidio ...


    By H2O GmbH

  • Optimization of atmospheric air plasma for degradation of organic dyes in wastewater

    This study optimises the degradation of a cocktail of the dyes methyl orange and bromothymol blue by atmospheric air plasma. Response surface methodology (RSM) was employed to investigate the efficacy of the plasma process parameters on degradation efficiency. A Box–Behnken design (BBD) was employed to optimise the degradation of dyes by air plasma discharge. A second order polynomial equation ...


    By IWA Publishing

  • Antifreeze Liquid Production: Start Your Own Business

    In some areas the cold period can last for up to eight months. Sub-zero temperatures are recorded even in October. This fact makes a small antifreeze production business quite promising. Why do we need non-freezing liquids? One important area of antifreeze liquid us is cleaning of car windscreens (windscreen cleaners). Another is cooling of the ...


    By GlobeCore GmbH

  • Antibiotic Production Wastewater Zero Liquid Discharge Of Disc Tube SUPER RO

    Project address: Inner Mongolia in China Inflow:6300 ton per day(the largest antibiotic wastewater zero discharge project in Asia) Acceptance time:1,2015 Process: UF+RO+SUPER RO+ ...

  • Kinetic degradation of guar gum in oilfield wastewater by photo-Fenton process

    Guar gum is considered as a main component of oilfield wastewater. This work is intended to optimize the experimental conditions (H2O2 dosage, Fe2+ dosage, initial concentration of organics, initial pH and temperature) for the maximum oxidative degradation of guar gum by Fenton's reagent. The kinetics of guar gum removal were evaluated by means of the chemical oxygen demand ...


    By IWA Publishing

  • Phthalate degradation by glow discharge plasma enhanced with pyrite in aqueous solution

    In order to prevent health risk from potential exposures to phthalates, a glow discharge plasma (GDP) process was applied for phthalate degradation in aqueous solution. The results revealed that the phthalate derivatives 4-hydroxyphthalic acid, 4-methylphthalic acid and 4-tert-butylphthalic anhydride could be degraded efficiently in GDP process (498 V, 0.2 A) with high removal efficiencies of ...


    By IWA Publishing

  • Phenols, flame retardants and phthalates in water and wastewater – a global problem

    Organic pollutants in water and wastewater have been causing serious environmental problems. The arbitrary discharge of wastewater by industries, and handling, use, and disposal constitute a means by which phenols, flame retardants (FRs), phthalates (PAEs) and other toxic organic pollutants enter the ecosystem. Moreover, these organic pollutants are not completely removed during treatment ...


    By IWA Publishing

  • Ten top tips to achieve zero liquid discharge production

    Sustainability is the hot topic of our time. In a world of dwindling natural resources, taking environmental responsibility is absolutely essential. That’s why it is up to companies to take responsibility for operating in a sustainable manner. Modern wastewater processing systems allow industrial companies to re-use their treated wastewater in production. Read the top ten tips for the ...


    By H2O GmbH

  • Montemorelos wastewater plant case study

    Performance History and Discussion In-Pipe Technology Company, Inc. was selected with goals to improve the biological treatment capacity at the wastewater treatment plant (WWTP) without capital expansion of the current facility. Due to the inability to make a capital investment to expand unit operations and processes, a municipal treatment plant in Montemorelos can not meet the needs of a ...

  • Orange park wastewater plant case study

    Project Summary The Town of Orange Park, Florida was challenged to meet the 2012 Florida TMDL limit of 7 mg/L total nitrogen in the effluent discharge (22,000 pounds N annually). To meet the deadline the Town decided on a three-phase upgrade plan and selected In-Pipe Technology to improve effluent quality during the process improvements and as an alternative solution to the problem of ...

  • Comparing the photocatalytic process efficiency using batch and tubular reactors in removal of methylene blue dye and COD from simulated textile wastewater

    The aim of this study was photocatalytic degradation of methylene blue (MB) dye using titanium dioxide nanoparticles simulated using ultraviolet in batch and tubular reactors. In this study, the effect of different concentrations of titanium dioxide nanoparticles in the photocatalytic process on MB degradation was examined in batch and tubular reactors. The effect of dye concentration, ...


    By IWA Publishing

  • In situ formation of nanoscale zero-value iron on fish-scale-based porous carbon for Cr(VI) adsorption

    Magnetic carbon materials that have nanoscale zero-valent iron (nZVI) supported on fish scale based hierarchical lamellar porous carbon (FHLC) is reported in this study. The nZVI on FHLC was in the form of body-centered-cubic iron (Fe) crystal. Although it was demonstrated that the specific surface area (SBET), total pore volume (Vt) and micropore volume (Vm) of the FHLC ...


    By IWA Publishing

  • The Wastewater life cycle inventory tool by 2.-0 LCA consultants

    Very often the fate of chemicals after use is to be sent to municipal wastewater treatment plants (WWTPs), where they are subject to degradation. In many life cycle assessment (LCA) studies we need to account for the environmental impacts caused by the disposal of chemical substances down the drain, however existing LCA models for wastewater treatment typically reflect the average performance of ...


    By IWA Publishing

  • QUA Supplied FEDI Stacks to Ethydco Refinery

    Project Background The Egyptian Ethylene and Derivatives Company (ETHYDCO) is a joint venture company established with the purpose to produce Ethylene, Butadiene and their derivatives (Polyethylene, Poly Butadiene). As part of ETHYDCO’s petrochemical complex in Alexandria, a 460,000 T/Y ethylene plant and a 20,000 T/Y butadiene extraction plant were ...


    By QUA Group LLC

  • Active pharmaceutical ingredients in wastewater: who are the major contributors?

    Active pharmaceutical ingredients (APIs) – responsible for the biological activity of drugs – have been widely found in the environment, yet the precise sources and relative importance of emissions via wastewater are not quite clear. This study assessed emissions from three health institutions in Germany – a hospital, a psychiatric hospital, and a nursing home - and found their ...

  • Treatment of hydraulic fracturing wastewater by wet air oxidation

    Wastewater produced by hydraulic fracturing for oil and gas production is characterized by high salinity and high chemical oxygen demand (COD). We applied a combination of flocculation and wet air oxidation technology to optimize the reduction of COD in the treatment of hydraulic fracturing wastewater. The experiments used different values of flocculant, coagulant, and oxidizing agent added to ...


    By IWA Publishing

  • Full-scale experience with the membrane bioreactor-reverse osmosis water reclamation process

    The Gippsland Water Factory (GWF), owned and operated by Gippsland Water in south eastern Australia, is a 35,000 m3/day water reclamation facility which treats 16,000 m3/day of domestic wastewater and 19,000 m3/day of industrial (pulp and paper) wastewater through parallel membrane-bioreactor (MBR)-based treatment trains prior to discharge to the Pacific Ocean via the Regional ...


    By IWA Publishing

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