algerian journal of environmental science and technology
Volume 1, Numéro 2, Pages 9-13
2015-08-30

Evaluation Of Trace Metals In Sewage Sludge From A ‎wastewater Treatment Plant With Perspective Of Valorisation



Authors : Benoudjit F . Hachemi M .

Abstract

The increasing quantities of sewage sludge from wastewater ‎treatment plants are a great source of worry especially concerning ‎their impact on the environment. Managing such sludge is the ‎basis for a successful general sanitation scheme.‎ The present work subject matter is the evaluation of pollutants ‎present in the sewage sludge recovered from urban wastewater ‎treatment plant of the town of Boumerdès, Algeria, which is treated ‎wastewater from three (03) towns: Boumerdes – Corso – ‎Tidjelabine. For this study, we followed the evolution of some ‎physical and chemical parameters such as the concentration of ‎trace metals which we have analysed mineralogically through the ‎use of X-ray fluorescence and then compared to the French ‎standard NF U 44-041. The NF U 44-041 standard concerns the ‎reuse of sewage sludge as fertilizer in land application. Several ‎sewage sludge samples have been analysed in the present work.‎ The analysis of the sewage sludge physical properties has revealed ‎a low percentage of dry matter (total solids) and a high ‎percentage of organic matter. The chemical characterization of the ‎sludge helped to evaluate their pH and polluting power. Overall ‎the pH level of the sludge was approaching neutrality and their ‎concentration in trace metals was below the thresholds defined by ‎the NF U 44-041 standard. Thus, municipal sewage sludge does ‎not represent any danger to the environment that thus can safely ‎be used in agriculture.‎

Keywords

Sewage sludge, ‎ X-ray fluorescence trace ‎metals ‎

Les articles similaires

Valorization Of Marine Waste In Sludge Treatment From Tizi-‎ouzou Wastewater Treatment Plant

Aili D .  Taouint Aissa N .  Adour L . 
pages 6-9.

Evaluation Of The Potential For Recovery Of Sludge From The Sidi El Khattab (relizane) Wastewater Treatment Plant In Agriculture

Belhaouari Benkhedda . 
pages 85-91.

Effect Of Sludge Of Wastewater From The Treatment Plant On The Growth In Pepper (capsicum Annuum.l ) Cultivated On Two Different Grounds

Hbaiz Em .  Satif C .  Fath-allah R .  Lebkiri M .  Lebkiri A .  Rifi Eh . 
pages 43-55.

The Use Of A Neural Network Technique For The Prediction Of Sludge Volume Index In Municipal Wastewater Treatment Plant

Djeddou M .  Achour B . 
pages 351-370.

Study Of Start-up Of A Continuous Digester On A Laboratory Scale Treating The Sludge Issued From Wastewater Treatment Plant In Adrar City (south West Of Algeria)

Kalloum S. .  Khelafi M. .  Djaafri M. .  Tahri A. .  Kaidi K. .  Touzi A. . 
pages 10-13.

Formats de citation