uv cod analyzer Articles

  • Photochemical degradation of 4-chlorophenol in the aqueous phase using peroxyacetic acid (PAA)

    The photochemical degradation of 4-chlorophenol (4-CP) using ultraviolet irradiation (UV) of 6, 12 and 18 W with peroxyacetic acid (PAA) was studied in a batch reactor. The objective of this work was to investigate degradation and mineralization of 4-CP by PAA. The degradation efficiency increased with increasing UV input. The degradation process was also pH and initial PAA concentration ...

    By IWA Publishing

  • 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

  • Application performance of a new coagulant in wastewater reuse

    Ultraviolet (UV) absorption characteristics of poly-Al-Zn-Fe (PAZF), a polymerized coagulant containing three kinds of metallic elements prepared from a galvanized-aluminum slag, was analyzed by UV-visible spectrophotometry during its polymerization process. Pollutant removal by PAZF in treating various wastewaters was investigated, in comparison with that of polyaluminum chloride (PAC). The ...

    By IWA Publishing

  • BM Respirometry benefits for activated sludge process management, research and training

    A biological process controlled by non-biological measurements? All treatment plant efficiencies are geared to the waste that they receive. The microorganisms found in the waste need food and oxygen to survive, the food is provided as soluble organic carbon in the waste stream and the oxygen is obtained through the aeration process in the treatment plant. Once a treatment plant ...

    By SURCIS, S.L.

  • BM Respirometry

    BM respirometery is a state of the art technology in where the traditional and most advanced respirometry techniques are gathered in one exclusive design developed by SURCIS Company. BM Respirometry makes use of a single reaction vessel that in certain mode replicates the actions that occur at a treatment plant under the conditions we set for the test. The BM system, under a powerful ...

    By SURCIS, S.L.

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