Biomedical subjects

K J Haralambous

Publications and source records attributed to K J Haralambous.

3 recordsLinked to original sources

PubMed2003

Development of guidelines on best practices for the slaughter of animals in Cyprus.

Cyprus is one of the candidate countries to become a full member of the European Union. In order to access formally to the EU, Cyprus has to follow an implementation process and take into account all the obligations that the fifteen Member States have to respect. A large number of obligations derive from the European Integrated Pollution Prevention and Control (IPPC) Directive 96/61/EC, which intends to result in the protection of the environment as a whole and the public health as well. This will be the outcome of determining ways of pollution prevention and control for several industrial sectors, which are covered by the IPPC Directive and then taking action so that all operators act according to the Directive's demands. In this framework, the National Technical University of Athens, after thorough examination of a large number of documents relevant to the Best Available Techniques (BATs), developed guidelines for the application of BATs for 14 categories of the industry of Cyprus. This paper concerns the developed guidelines for slaughterhouses.

Abattoirs↗

PubMed2001

Removal of heavy metals from sewage sludge by acid treatment.

Sludge samples were found to contain significant amounts of heavy metals (Cr, Cu, Ni, Pb and Zn) and were subjected to acid treatment using either hydrochloric, sulfuric, nitric or phosphoric acid. The optimum combination, in terms of metal removal efficiency and environmental impacts was sought through a variety of tests by applying a ratio of 1:5 of sludge quantity (g) per volume of acid (ml). The concentrations of the different acids used, were in the range of 5%-20% and the contact times ranged between 15 and 60 minutes. The optimum combination was achieved when the sludge samples were in contact with H2SO4 20% v/v for 60 minutes. In order to estimate the metal leachability, the heavy metal content as well as the metal distribution in the residue were investigated and it was found that most of the heavy metal content was extracted while the remaining was removed from the initial mobile phases to the more stable ones.

Acids↗

PubMed2001

Cement-based stabilization/solidification of metal plating industry sludge.

This study examines the cement-based Stabilization/Solidification (S/S) technique of sludge produced from a metal plating industry. The sludge samples were characterized in terms of pH and heavy metal content (Cr, Cu, Fe, Ni, Pb and Zn). The leachability of the sludge was estimated using the Toxicity Characteristic Leaching Procedure (TCLP). Two binder mixtures were used for the S/S process, fly ash/cement and zeolite/cement. The weight ratio of the binder mixtures was optimized to achieve the highest strength. The optimum ratio binder mixtures was mixed with sludge samples of different weight ratios and cured for 28 days in order to find the S/S products with the highest strength and the lowest leachability.

Environmental Pollution↗