EFFECTS OF INDUSTRIAL WASTEWATER ON GERMINATION AND SOME PHYSIOLOGICAL PROPERTIES OF DORMAST OAK (QUERCUS PETRAEA LIEBL.) SEEDS

In this study, where the effects of various concentrations of unfiltered wastewaters released from a textile factory located in the organized industrial zone of Bartin on mean germination percentages, seed power, and total chlorophyll content of seedlings have been evaluated, the dormast oak (Quercus petraea Liebl.) which is widely used in our country in artificial regeneration, rehabilitation and foresting activities has been chosen. When the results related with mean seed germination percentage have been evaluated, it has been determined that there is a statistically significant (p<0.01) difference between control and wastewater implemented dormast oak seeds in terms of germination percentage, and that 3 different groups have emerged. Accordingly, the germination percentage of seeds has shown significant decrease after concentration of 40\%. Accordingly, while the dormast oak seeds in control group and 20\% wastewater treatment group take place in the 1st group, the 2nd group consists of experiment populations treated with 40\% and 60\% of wastewater concentrations where the seed power started to decrease significantly, and the seed groups treated with 80\% and 100\% of wastewater concentrations where the seed power is lowest-clustered in 3rd group. As in germination percentage, the most important decrease in seed power starts from treatment with 40\% of wastewater concentration. On the other hand, it has been found that the power starts to increase since the 8th day in almost all of the groups. Also, there is a strong relationship with value of 92\% between the total chlorophyll content found in fresh dormast oak seedlings and industrial wastewater concentration (R-2 = 0.9216)

Using Leaves of Oriental Plane (Platanus orientalis L.) to Determine the Effects of Heavy Metal Pollution Caused by Vehicles

This study uses oriental plane (Platanus orientalis L.) leaves to determine the heavy metal pollution caused by vehicular traffic on the D-755 Highway connecting Bartm and Karabuk cities in Turkey. As a result of the analyses, it was determined that the order of elements leading to metal emitted from vehicles is Pb>Zn>Ni>Cu>Cr>Cd. On the other hand, according to the variance analysis and Duncan test performed, we found a statistically significant difference between 20 sampling stations at the confidence level of P<0.01. Accordingly, while stations 1, 2, 3, 4, 10, 11, 17, 18, 19, and 20 were in the first group in terms of heavy metal pollution, stations 5, 6, 7, 8, 9, 12, and 13 were in the second group, and stations 14, 15, and 16 were in the third group. Moreover, it was determined that injuries at dimensions of 1.5-4.7 mu m occurred in epidermis cells of the oriental plane trees' leaves, and that the dimensions of these injuries reached levels of 10.2-14.7 mu m during further periods. Actual levels of trace elements are as follows: Pb 0.10-0.78 mg-kg(-1), Zn 18.2-52.4 mg.kg(-1), Ni 0.13-0.35 mg.kg(-1), Cu 3.45-12.73 mg.kg(-1), Cr 0.21-0.37 mg.kg(-1), and Cd 0.05-0.12 mg.kg(-1)

Evaluating Forest Waste on Adsorption of Cd(II) from Aqueous Solution: Equilibrium and Thermodynamic Studies

The aim of this work was to investigate the adsorption potential of Uludag fir (Abies nordmanniana subsp. bornmulleriana Mattf.) on cadmium removal using batch experiments. The effect of parameters such as initial metal concentration, initial pH, biosorbent dosage, stirring speed, contact time and temperature was examined. The Langmuir and Freundlich models were applied to describe the equilibrium isotherms, and the biosorption process followed the Langmuir adsorption isotherms model with high coefficients of correlation at different temperatures. The kinetics of the sorption were analysed using the pseudo first-order and pseudo second-order kinetic models. The pseudo second-order kinetic model fit well in correlation with the experimental results. Moreover, the evaluated thermodynamic parameters (Delta G(0), Delta H-0, Delta S-0) showed that the sorption process was feasible, spontaneous and endothermic in nature. This study showed that Uludag fir (Abies nordmanniana subsp. bornmulleriana Mattf.) can be used as an effective and ecologically friendly biosorbent for removal of Cd(II) from aqueous solutions