Ecological technologies for industrial wastewater management by Victor M. Monsalvo

By Victor M. Monsalvo

Water is key to our planet’s existence, and maintaining our water assets is a prerequisite for development a sustainable destiny. considering water use is inextricably associated with power use, even if, we are facing major demanding situations. Water performs a vital function in lots of, if now not so much, production amenities. In a global dealing with a water-scarcity difficulty, a lot examine and improvement at present makes a speciality of reducing industries’ water-use footprint.

This compendium quantity seems to be in short at numerous decide upon industries and investigates quite a few water remedy procedures for every, together with microbial biotechnologies, ozone-related tactics, adsorption, and photochemical reactions, between others. some of the industries are geared up into 4 groups:

  • Industries that produce petrochemicals
  • Metal industries
  • The semi-conductor industry
  • The paper and pulp industries

Collected by way of a well-respected professional within the box, the reviews amassed listed below are meant to be a kick off point for additional research by means of graduate scholars and different medical researchers. trendy learn, present in those chapters, will be extended to create tomorrow's even wider body of study.

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Extra info for Ecological technologies for industrial wastewater management : petrochemicals, metals, semi-conductors, and paper industries

Example text

Among the anaerobic systems, the upflow anaerobic sludge blanket (UASB) reactor is the most widely applied for industrial wastewater. However, the so-called expanded granular sludge bed (EGSB) reactor is a promising alternative in which the height to diameter ratio and the external recirculation rate are increased, improving the mixing and contact between wastewater and biomass. [6] The viability of this system has been previously demonstrated in full-scale applications treating real wastewaters.

11 g COD g−1 VSS d−1 as the COD of the fed stream was increased from 4 to 32 g COD L−1. 23 g CH4-COD g−1 VSS d−1 to almost zero under those same conditions. These results suggest the occurrence of inhibitory phenomena, since the activity values decreased when increasing the organic load of the UIO wastewater. Effects of adsorption or volatilization were negligible, so the COD removal can be attributed exclusively to biological degradation. 15 g CH4-COD was obtained at an UIO wastewater COD of 4 g L−1, reaching a methanogenic potential of around 65%.

1 BIOMASS SOURCE Anaerobic granular biomass was collected from a full-scale UASB reactor treating sugar-beet wastewater (Valladolid, Spain). 46 g CH4-COD g−1 VSS d−1. 2 WASTEWATER COMPOSITION Wastewater was collected from a UIO recovery plant (Madrid, Spain). 8. 9 g L−1. 3 SMA DETERMINATION Specific methanogenic activity (SMA) was measured using the Automatic Methane Potential Test System (AMPTS) developed by Bioprocess Control AB (Lund, Sweden). The AMPTS follows the same principles as the conventional methane potential test, thus making the results comparable with standard methods.

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