29 Matching Annotations
  1. Jul 2020
  2. May 2020
    1. Research on enveloped virus presence and fate in water is hindered by the lack of proven detection methods. Detecting and quantifying viruses in environmental samples requires first concentrating the viruses in the sample into a smaller volume to improve detection limits
    1. The 1MDS-method and the HA-method did not provide as high recovery yields of the virions as the Mg-method.

      The reason for this could be the beef extract used to elute the virions from both these membranes. The other two successful methods (Mg and Al) used H2SO4 for elution.

  3. Apr 2020
    1. Viruses have a direct connection to wastewater and drinking water purification when they are excreted in feces or urine

      How does this compare with spit and nasal secretions which also connect to the wastewater? Is this a bigger source of viral particles in the case of a respiratory virus?

    1. wastewater treatment disease transmission studies from that time did not usually consider respiratory pathogens.

      During the 1980s, there were few pathogens that were both known to initiate infection in the lungs and frequently occur in wastewater (U.S. Environmental Protection Agency, 1980). It was viewed as an anomaly if an enteric pathogen was “uniquely infectious by the aerosol route”, with the noted exception of the respiratory bacterium Mycobacterium tuberculosis

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  4. Mar 2020
    1. trace contaminants such as heavy metals in the upper horizons may be accumulated, which may eventually lead to deterioration of soil and groundwater quality and affect the sustainability of land-based disposal of effluent
    1. Eggplant yield under treated effluent was twice the average eggplant production under fresh water irrigation using conventional fertiliser application in Jordan
  5. Oct 2019
    1. indicate that even low concentrations of just a single type of antibiotic leads to resistance to multiple classes of antibiotics.

      I doubt this claim, do you mean they are correlated?

    1. suggesting that STPs have become an important source of contamination for their receiving rivers

      Read these references: Saying antibiotic resistance is proliferating in wastewater treatment plants

    2. Additionally, the concentrations of antibiotics and the abundance of ARGs might increase after the sewage treatment process.

      Wow, that is a strong and counter-intuitive claim. Is this rigorously determined?

    1. wastewater treatment plants are hotspots for the release of antibiotics, and transmission of diverse antibiotic resistance bacteria (ARB) as well as ARGs into various environments

      That's a strong claim, not backed by strong evidence

    2. Recent findings have indicated that most ARGs could not be efficiently removed by traditional anaerobic digestion treatment
    1. Many QS-controlled genes relate to biofilm formation and function and may be important for some water and wastewater treatment biofilms
    2. Many QS-controlled genes relate to biofilm formation and function and may be important for some water and wastewater treatment biofilms
    1. it become possible to engineer these microbial structures to allow bacteria to form a stable granular sludge instead of flocculent sludge
  6. Sep 2019
  7. Aug 2019
    1. endogenous AHL-based QS and QQ are existing and coexisting in biological wastewater treatments; the leading role for AHL-based QS or QQ phenomenon in biological wastewater treatments can be determined by bacterial AHL concentration.
  8. Feb 2019
    1. Main aim of industrial wastewater treatment is to lower the number of solids such as waste product, organic materials, and sand from industrial wastewater. This wastewater treatment can lead to water sustainability and be a roadway of preventing the scarcity of potable water in India. For more details read article.

  9. Oct 2017