CHARACTERIZATION AND ANAEROBIC TREATMENT OF BIOLOGICAL AND PHYSICOCHEMICAL SLUDGE FROM A MOROCCAN DAIRY INDUSTRY
Journal Title: Journal of Water and Environmental Sciences - Year 2017, Vol 1, Issue 1
Abstract
The physicochemical and biological sludge (PCS and BS) from a Moroccan dairy industry, constitute a source of organic matter that is ranging respectively between 58.67 to 90.6% and 18.85 to 92.5%. The composition of these sludges is very specific because they are derived from an effluent mixture (milk, orange, whey, …) witch varied according to production of this industry. As results, the physicochemical and microbiological characteristics of these sludges fluctuate according to time. The pH of biological sludge varied between 7.35 to 8.85 while the pH of physicochemical sludge fluctuated between 5.32 to 7.5. In addition the microbial germs is represented by total coliforms (3.95.107 and 2.02.1011UFC.ml-1), total germs (1.61.109 and 2.36.1012 UFC.ml-1), sulphate-reducing bacteria (1.55.108 and 5.72.109 UFC.ml-1), lactobacillus (2.15.108 and 9.37.1011 UFC.ml-1) and streptococcus (1.05.109 and 2.46.1011UFC.ml-1) (respectively for BS and PCS). Assessment of anaerobic digestion for treating these wastes in batch reactor at mesophilic condition (38°C) show the promising results in terms of methane production and organic pollution removal. Indeed, the methane yields were 5.601 and 20.79 mlSTP.gVS-1 gave respectively by BS and PCS for the maximal load (100% of substrate) which is the optimal load. The total solid and volatile solid reduction reached 79.63 and 83.60% for biological sludge while it reached 87.06% and 89.16% for physicochemical sludge for the same load (100% of sludge).
Authors and Affiliations
Saaida LHANAFI, Mohamed ABBAZ, Rachid ELHAOUTI, Youness AZOUGARH, Said ETTALEB, Rabih ABA-AAKI, Bouchera CHEBLI, Hassan ELBARI, Noureddine ELALEM
Keywords
Related Articles
- EP ID EP258425
- DOI -
- Views 102
- Downloads 0
EFFET DES PARAMETRES REACTIONNELS SUR LA CHLORATION DE l’HISTIDINE EN EAUX MINERALISEES / EFFECT OF REACTION PARAMETERS ON CHLORINATION OF HISTIDINE IN MEDIA OF VARIABLE MINERALIZATION
The aim of this work is to study the chlorination of histidine (nitrogenous base) in media of various mineralizations (distilled water and ground water). Several reaction parameters (effect of pH, contact time, chlorinat...
EVOLUTION DES PARAMETRES ZOOTECHNIQUES DE LA CARPE ARGENTEE (HYPOPHTHALMICHTHYS MOLITRIX) ELEVEE SOUS CLIMAT SEMI-ARIDE A LA STATION DE PISCICULTURE DEROUA, MAROC. EVOLUTION OF ZOOTECHNICAL PARAMETERS OF SILVER CARP (HYPOPHTHALMICHTHYS MOLITRIX) REARED IN SEMI-ARID CLIMATE (DEROUA FISH FARM, MOROCCO).
The growth rate of Silver carp (Hypophthalmichthys molitrix) artificially reproduced in the Deroua Fisheries Station (Morocco) since 1990 varies according to the temperature (seasons) and rearing modes (monoculture or po...
VALORISATION DES PELURES DE POMMES DE TERRE POUR LE TRAITEMENT D’UNE SOLUTION AQUEUSE CONTENANT UN COLORANT TEXTILE (REACTIVE BLUE 72) / APPLICATION OF POTATO PEELS FOR THE REMOVAL OF REACTIVE BLUE 72 FROM AQUEOUS SOLUTIONS
The aim of this work is to use agricultural wastes such as potato peels (PP) as an effective low-cost biosorbent for the removal of turquoise blue dye (TB) from aqueous solutions. Adsorption of the potato peels has been...
EFFETS D’UN ALIMENT EXTRUDE SUR LES PERFORMANCES DE CROISSANCE DE LA TRUITE ARC-EN-CIEL (ONCORHYNCHUS MYKISS WALBAUM, 1792) ET SUR LA QUALITE DE L’EAU DE L’OUED OUM ER-RBIA (STATION AIN AGHBAL, AZROU-MAROC). EFFECTS OF AN EXTRUDED FOOD ON THE GROWTH PERFORMANCE OF RAINBOW TROUT (ONCORHYNCHUS MYKISS WALBAUM, 1792) AND THE WATER QUALITY OF THE OUED OUM ER-RBIA (FISH FARM AIN AGHBAL, AZROU-MOROCCO)
The objective of our study is to test the efficacy of an extruded food on the growth performance of rainbow trout (Oncorhynchus mykiss Walbaum, 1792) at the fish farm Ain Aghbal in Azrou (Morocco). Generally, only the bi...
ADAPTATION AUX CHANGEMENTS CLIMATIQUES PAR UNE AQUACULTURE RURALE : POTENTIEL ET CAPACITE DE CHARGE DU LAC DE BARRAGE HASSAN 1er (MAROC). CLIMATE CHANGE ADAPTATION THROUGH RURAL AQUACULTURE: POTENTIAL AND CARRYING CAPACITY OF HASSAN 1st DAM LAKE (MOROCCO).
The aim of this study was to estimate the carrying capacity of Hassan 1er Dam Lake, Morocco, where cage farms for the intensive culture of Tilapia Nilotica will be located. For this purpose Dillon and Rigler phosphorus b...