Effect of environmental factors on production and bioavailability of dissolved organic carbon from substrates available in a constructed and reference fens in the Athabasca oil sands development region

The need for solid household waste (MSW) generated by economic and domestic activities is continuous and should be imposed to protect the health of the population and environmental factors. After sorting the generated waste, „the remaining residue” favours the occurrence of some pollutants, among which we mention suspended particulates, disagreeable odours, greenhouse gases, etc. This waste has to be managed in safe health and environment, no matter where it was generated. Managing them means either storing in statutory environmental protection facilities or incinerating in authorized installations with integrated environmental permitting. Waste storage may be subject to a mathematical equation called the time equation of a landfill. On the basis of such equation, it will be possible to calculate annually the amount of degraded waste gas generating gas (LFG) containing CH4 and CO2. The amount of degraded waste means waste with high dissolved organic carbon (DOC).

Download Full-text

SOLVING TECHNICAL PROBLEMS THROUGH EQUATIONS

Journal of Engineering Studies and Research ◽

10.29081/jesr.v24i1.290 ◽

2018 ◽

Vol 24 (1) ◽

Author(s):

DANILA VIERU ◽

GHEORGHE VOICU ◽

LAURA TOMA ◽

PAULA TUDOR

Keyword(s):

Environmental Factors ◽

Organic Carbon ◽

Dissolved Organic Carbon ◽

Household Waste ◽

Mathematical Equation ◽

Technical Problems ◽

Waste Gas ◽

Suspended Particulates ◽

Waste Storage ◽

Environmental Permitting

The need for solid household waste (MSW) generated by economic and domestic activities is continuous and should be imposed to protect the health of the population and environmental factors. After sorting the generated waste, „the remaining residue” favours the occurrence of some pollutants, among which we mention suspended particulates, disagreeable odours, greenhouse gases, etc. This waste has to be managed in safe health and environment, no matter where it was generated. Managing them means either storing in statutory environmental protection facilities or incinerating in authorized installations with integrated environmental permitting. Waste storage may be subject to a mathematical equation called the time equation of a landfill. On the basis of such equation, it will be possible to calculate annually the amount of degraded waste gas generating gas (LFG) containing CH<sub>4</sub> and CO<sub>2</sub>. The amount of degraded waste means waste with high dissolved organic carbon (DOC).

Download Full-text

Relation between Mercury Concentrations in Walleye (Stizostedion vitreum vitreum) and Northern Pike (Esox lucius) in Ontario Lakes and Influence of Environmental Factors

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f91-018 ◽

1991 ◽

Vol 48 (1) ◽

pp. 132-139 ◽

Cited By ~ 61

Author(s):

C. D. Wren ◽

W. A. Scheider ◽

D. L. Wales ◽

B. W. Muncaster ◽

I. M. Gray

Keyword(s):

Environmental Factors ◽

Organic Carbon ◽

Dissolved Organic Carbon ◽

Northern Pike ◽

Esox Lucius ◽

Stizostedion Vitreum ◽

Pike Esox Lucius ◽

The Mean ◽

Highly Correlated

We examined the relation between mercury levels in walleye (Stizostedion vitreum vitreum) and northern pike (Esox lucius) in Ontario lakes. Walleye and northern pike occurred together in 79 of the 346 study lakes. The length-standardized mercury concentrations in coexisting walleye and northern pike in the 79 lakes were highly correlated (r2 = 0.60). The mean mercury concentrations in walleye and northern pike of standardized length from these lakes were 0.65 and 0.52 μg/g, respectively. Lacustrine characteristics associated with lake dystrophy (dissolved organic carbon and iron) were positively correlated with mercury levels in both species. Variables associated with acidity (pH and alkalinity) and hardness (calcium, conductivity, and magnesium) were negatively correlated with mercury concentrations in northern pike but not walleye.

Download Full-text