Search anything and hit enter
  • Teams
  • Members
  • Projects
  • Events
  • Calls
  • Jobs
  • publications
  • Software
  • Tools
  • Network
  • Equipment

A little guide for advanced search:

  • Tip 1. You can use quotes "" to search for an exact expression.
    Example: "cell division"
  • Tip 2. You can use + symbol to restrict results containing all words.
    Example: +cell +stem
  • Tip 3. You can use + and - symbols to force inclusion or exclusion of specific words.
    Example: +cell -stem
e.g. searching for members in projects tagged cancer
Search for
Count
IN
OUT
Content 1
  • member
  • team
  • department
  • center
  • program_project
  • nrc
  • whocc
  • project
  • software
  • tool
  • patent
  • Administrative Staff
  • Assistant Professor
  • Associate Professor
  • Clinical Research Assistant
  • Clinical Research Nurse
  • Clinician Researcher
  • Department Manager
  • Dual-education Student
  • Full Professor
  • Honorary Professor
  • Lab assistant
  • Master Student
  • Non-permanent Researcher
  • Nursing Staff
  • Permanent Researcher
  • Pharmacist
  • PhD Student
  • Physician
  • Post-doc
  • Prize
  • Project Manager
  • Research Associate
  • Research Engineer
  • Retired scientist
  • Technician
  • Undergraduate Student
  • Veterinary
  • Visiting Scientist
  • Deputy Director of Center
  • Deputy Director of Department
  • Deputy Director of National Reference Center
  • Deputy Head of Facility
  • Director of Center
  • Director of Department
  • Director of Institute
  • Director of National Reference Center
  • Group Leader
  • Head of Facility
  • Head of Operations
  • Head of Structure
  • Honorary President of the Departement
  • Labex Coordinator
Content 2
  • member
  • team
  • department
  • center
  • program_project
  • nrc
  • whocc
  • project
  • software
  • tool
  • patent
  • Administrative Staff
  • Assistant Professor
  • Associate Professor
  • Clinical Research Assistant
  • Clinical Research Nurse
  • Clinician Researcher
  • Department Manager
  • Dual-education Student
  • Full Professor
  • Honorary Professor
  • Lab assistant
  • Master Student
  • Non-permanent Researcher
  • Nursing Staff
  • Permanent Researcher
  • Pharmacist
  • PhD Student
  • Physician
  • Post-doc
  • Prize
  • Project Manager
  • Research Associate
  • Research Engineer
  • Retired scientist
  • Technician
  • Undergraduate Student
  • Veterinary
  • Visiting Scientist
  • Deputy Director of Center
  • Deputy Director of Department
  • Deputy Director of National Reference Center
  • Deputy Head of Facility
  • Director of Center
  • Director of Department
  • Director of Institute
  • Director of National Reference Center
  • Group Leader
  • Head of Facility
  • Head of Operations
  • Head of Structure
  • Honorary President of the Departement
  • Labex Coordinator
Search

← Go to Research

Go back
Scroll to top
Share
© Research
Publication : Process Biochemistry

DEFINITION OF OPTIMAL CONDITIONS FOR THE HYDROLYSIS AND ACIDOGENESIS OF A PHARMACEUTICAL MICROBIAL BIOMASS

Member: Valérie Bouchez
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Process Biochemistry - 01 Jan 1997

PENAUD V; DELGENES JP; TORRIJOS M; MOLETTA R; VANHOUTTE B; CANS P

Process biochemistry, 32(6), 1997, pp. 515-521

Abstract

The effect of operational parameters such as hydraulic retention time(HRT), influent substrate concentration (So), pH, temperature and recycling on the acidogenic digestion of a pharmaceutical biomass was investigated. The total COD content of the pharmaceutical effluent used was 50 g/litre, only 13.6% occurred in soluble form and consisted mostly of protein (22 g/litre). Substrate degradation was quantified in terms of COD, protein and carbohydrate degradation. Variations in COD solubilization were mainly due to protein solubilization. The best results, in terms of COD solubilization and concentrations of produced VFA, were obtained at pH = 8.5, T = 35 degrees C and OLR = 5.4 gCOD/litre/day. Under these conditions 50.6% of the initial COD content was solubilized and 17.1 g/litre of volatile fatty acids (VFA) were produced. Recycling of biomass resulted in greater COD solubilization but in loweracidogenic activity. Moreover, the effluent of the acidogenic reactorshowed poor settling properties. (C) 1997 Elsevier Science Ltd.