Environmental Engineering

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By Etienne Paul, Yu Liu

A finished advisor to sludge administration, reuse, and disposal

When wastewater is taken care of, lowering natural fabric to carbon dioxide, water, and bacterial cells?the cells are disposed of, generating a semisolid and nutrient-rich byproduct known as sludge. the growth in international inhabitants and business job has became the creation of extra sludge into a global environmental problem, with the last word disposal of extra sludge now some of the most pricey difficulties confronted by way of wastewater amenities.

Written by way of major environmental engineers, Biological Sludge Minimization and Biomaterials/Bioenergy restoration applied sciences offers a finished examine state of the art recommendations for decreasing sludge construction, changing sludge right into a value-added fabric, improving precious assets from sludge, and sludge incineration. Reflecting the effect of recent stringent environmental laws, this ebook deals a frank appraisal of the way sludge will be realistically controlled, overlaying key matters and the newest instruments:

  • Fundamentals of organic methods for wastewater therapy, wastewater microbiology, and microbial metabolism, necessary to knowing how sludge is produced
  • Prediction of basic sludge and waste-activated sludge construction, one of the leader layout and operational demanding situations of a wastewater therapy plant
  • Technologies for sludge relief, with a spotlight on lowering microbial progress yield in addition to improving sludge disintegration
  • The use of anerobic digestion of sewage sludge for biogas restoration, when it comes to procedure basics, layout, and operation
  • The use of the microbial gasoline mobile (MFC) approach for the sustainable therapy of natural wastes and electricity recovery

Chapter 1 basics of organic tactics for Wastewater remedy (pages 1–80): Jianlong Wang
Chapter 2 Sludge creation: Quantification and Prediction for city remedy vegetation and evaluation of options for Sludge relief (pages 81–116): Mathieu Sperandio, Etienne Paul, Yolaine Bessiere and Yu Liu
Chapter three Characterization of Municipal Wastewater and Sludge (pages 117–154): Etienne Paul, Xavier Lefebvre, Mathieu Sperandio, Dominique Lefebvre and Yu Liu
Chapter four Oxic?Settling?Anaerobic strategy for more advantageous Microbial Decay (pages 155–182): Qingliang Zhao and Jianfang Wang
Chapter five power Uncoupling for Sludge Minimization: professionals and CONS (pages 183–208): Bo Jiang, Yu Liu and Etienne Paul
Chapter 6 relief of extra Sludge creation utilizing Ozonation or Chlorination: functionality and Mechanisms of motion (pages 209–248): Etienne Paul, Qi?Shan Liu and Yu Liu
Chapter 7 High?Dissolved?Oxygen organic method for Sludge aid (pages 249–260): Zhi?Wu Wang
Chapter eight Minimizing extra Sludge construction via Membrane Bioreactors and built-in tactics (pages 261–290): Philip Chuen?Yung Wong
Chapter nine Microbial gas telephone know-how for Sustainable remedy of natural Wastes and electricity restoration (pages 291–318): Shi?Jie You, Nan?Qi Ren and Qing?Liang Zhao
Chapter 10 Anaerobic Digestion of Sewage Sludge (pages 319–347): Kuan?Yeow exhibit, Duu?Jong Lee and Joo?Hwa Tay
Chapter eleven Mechanical Pretreatment?Assisted organic techniques (pages 349–371): Helene Carrere, Damien J. Batstone and Etienne Paul
Chapter 12 Thermal easy methods to increase organic remedy tactics (pages 373–404): Etienne Paul, Helene Carrere and Damien J. Batstone
Chapter thirteen Combustion, Pyrolysis, and Gasification of Sewage Sludge for strength restoration (pages 405–427): Yong?Qiang Liu, Joo?Hwa Tay and Yu Liu
Chapter 14 cardio Granular Sludge know-how for Wastewater remedy (pages 429–463): Bing?Jie Ni and Han?Qing Yu
Chapter 15 Biodegradable Bioplastics from Fermented Sludge, Wastes, and Effluents (pages 465–498): Etienne Paul, Elisabeth Neuhauser and Yu Liu

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Extra resources for Biological Sludge Minimization and Biomaterials/Bioenergy Recovery Technologies

Example text

This chemical energy is then harnessed to do work for the cell. A microorganism must perform many different types of work, such as synthesis of physical parts of the cell, repair or maintenance of cell components, and growth. Some chemical compounds released by catabolism are used by the bacterial cell for its life functions. Anabolism includes all the biochemical processes by which the bacterium synthesizes new chemical compounds needed by the cells to live and reproduce. The synthesis process is driven by the energy that was stored in the energy carrier.

There are four major groups of protozoans: (1) Mastigophora: flagellated protozoans (Euglena); (2) Sarcodina: amoeba-like protozoans (Amoeba); (3) Sporozoa, parasitic protozoans (Plasmodium malaria); (4) Ciliophora: ciliated protozoans (Paramecium). The first three classes are the free-swimming protozoans and the last class comprises the parasitic protozoans. The full scheme is illustrated in Fig. 3. Protozoans are primarily aerobic organisms, requiring dissolved oxygen as their electron acceptor.

The minor elements (microelements), such as K, Ca, Mg, Na, and Fe, are used in smaller quantities, while the trace elements, such as Mn, Zn, Co, Mo, Ni, and Cu, are used in relatively very much smaller amounts. The amount of an element used by a microbe does not correlate with its relative importance; even one used in a trace amount may be essential to the growth or life of a microbial cell. Carbon to Build Cells Carbon is one of the most important chemical elements required for microbial growth.

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