Reducing Potential Leaching of Phosphorus, Heavy Metals, and Fecal Coliform From Animal Wastes Using Bauxite Residues

2010 ◽  
Vol 214 (1-4) ◽  
pp. 241-252 ◽  
Author(s):  
Jim J. Wang ◽  
Hailin Zhang ◽  
Jackie L. Schroder ◽  
Theophilus K. Udeigwe ◽  
Zengqiang Zhang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fecal Coliform ◽  
Animal Wastes ◽  
Reducing Potential ◽  
Bauxite Residues

scholarly journals Effects of Wastewater Sludge Topdressing on Color, Quality, and Clipping Yield of a Turfgrass Mixture

HortScience ◽  
2011 ◽  
Vol 46 (9) ◽  
pp. 1308-1313 ◽  
Author(s):  
Ugur Bilgili ◽  
F. Olcay Topac-Sagban ◽  
Irfan Surer ◽  
Nejla Caliskan ◽  
Pervin Uzun ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Ammonium Nitrate ◽  
Food Processing ◽  
Fecal Coliform ◽  
Soil Samples ◽  
Wastewater Sludge ◽  
Turf Quality ◽  
Color Quality ◽  
Turf Soils ◽  
Sludge Application

The objectives of the present study were to determine the effects of the rate and timing of the application of sun-dried wastewater sludge from a food processing company's wastewater system on turfgrass growth and quality. The results were compared with those obtained with ammonium nitrate, and changes in the concentration of heavy metals and the presence of fecal coliform in turf soils after sun-dried wastewater sludge application were determined. The rate and the timing of sun-dried wastewater sludge and ammonium nitrate applications affected the turf color, quality, and clipping yield. Monthly fertilization resulted in a more uniform color and turf quality than infrequent spring and fall fertilization. Compared with the background values of base soils, heavy metals did not accumulate in sun-dried wastewater sludge-amended soils over the test period. Fecal coliform was not detected in sludge-amended soil samples, indicating that bacteria regrowth did not occur during the study period.

scholarly journals Using Liquid Aluminum Chloride to Reduce Heavy Metals from Animal Wastes

2012 ◽  
Vol 21 (3) ◽  
pp. 377-382 ◽  
Author(s):  
Chang-Mann Kim ◽  
Jung-Hoon Choi ◽  
In-Hag Choi
Keyword(s):  
Heavy Metals ◽  
Aluminum Chloride ◽  
Liquid Aluminum ◽  
Animal Wastes

scholarly journals Effect of Irrigation with Municipal Wastewater on Heavy Metal and Fecal Coliform Concentrations in Plant and Soil

2019 ◽  
Keyword(s):  
Heavy Metals ◽  
Fecal Coliform ◽  
Municipal Wastewater ◽  
Soil Nutrient ◽  
Treated Wastewater ◽  
Nutrient Concentrations ◽  
Well Water ◽  
Soil P ◽  
Continuous Application ◽  
Water And Wastewater

<p>In order to investigate the effect of treated wastewater on heavy metals and fecal coliform in plant and soil, a field experiment was conducted in RCBD with three treatments in four replications during 2016-2017 in Borkhar, Isfahan (Iran). Treatments including well water, semi-treated wastewater and combination of well water and wastewater were applied in consecutive cultivation of wheat and forage corn. The amount of heavy metals in the soil did not change after two seasons of wastewater application compared to well water. The amount of fecal coliform in both plants was increased in the irrigation water treatment compared to the well water, which was more evident in the corn plant, which is related to the high moisture content of this plant at harvest stage. Due to the improvement of soil nutrient concentrations after two seasons of continuous application of wastewater and no increase in the amount of heavy metals in the soil, the use of wastewater for agricultural production is permissible. But according to the fecal coliform index, it is recommended not to be used for the production of crops harvested at high humidity and conditions for the survival of pathogens.</p>

Lagoon Treatment of Municipal Sewage Effluent in a Subarctic Region of Canada (Yellowknife, N.W.T.)

1986 ◽  
Vol 18 (2) ◽  
pp. 129-139 ◽  
Author(s):  
Ranjit N. Soniassy ◽  
Rodney Lemon
Keyword(s):  
Heavy Metals ◽  
Fecal Coliform ◽  
Total Coliform ◽  
Cold Climate ◽  
Municipal Sewage ◽  
Subarctic Region ◽  
Treated Effluent ◽  
Microbiological Parameters ◽  
Subarctic Climate ◽  
One Year

The performance of a municipal sewage lagoon in a subarctic climate (Yellowknife, N.W.T.) was evaluated over a one year period to determine its seasonal treatment capabilities. Raw sewage (influent) and treated effluent were analysed for several physicochemical and microbiological parameters. Effective removals of BOD5, total coliform, fecal coliform, fecal streptococci and heavy metals (Cu, Ni, Zn, Cd, Pb and Hg) were obtained from mid-June to mid-September. No evidence of treatment was observed when the lagoon was under ice cover (October to May). The concentrations of several heavy metals (Cu, Zn and Pb) were found to decrease gradually, reaching a low in summer, before rising again in the fall and winter. A system of managing cold climate lagoons, based on ambient temperature, is presented.

Anaerobic digestion in Uganda: risks and opportunities for integration of waste management and agricultural systems

2019 ◽  
Vol 35 (6) ◽  
pp. 678-687
Author(s):  
A. I. McCord ◽  
S. A. Stefanos ◽  
V. Tumwesige ◽  
D. Lsoto ◽  
M. Kawala ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Anaerobic Digestion ◽  
Waste Management ◽  
Fecal Coliform ◽  
Low Cost ◽  
Organic Fertilizer ◽  
Oxygen Demand ◽  
Field Application ◽  
Indicator Organisms ◽  
Micro Scale

AbstractMuch of the global population lacks access to basic public sanitation, energy and fertilizers. Micro-scale anaerobic digestion presents an opportunity for low-cost decentralized waste management that creates valuable co-products of renewable energy and organic fertilizer. However, field-based assessments of system performance and clearly articulated guidelines for digestate management and field application are needed. Feedstocks and effluent from seven digesters in Kampala, Uganda were monitored for standard wastewater and fertilizer metrics including indicator organisms (Escherichia coli and fecal coliform), chemical oxygen demand (COD), biological oxygen demand (BOD5), total Kjeldahl nitrogen (TKN), total phosphorous (TP), heavy metals, pH, temperature and total solids (TS) over 2 yr. Results reveal that digester effluent does not meet standards for wastewater discharge or international safety standards for field application. Data indicate that digestate could be a suitable source of fertilizer (TKN = 1467 mg L−1, TP = 214 mg L−1) but poses issues for water quality if not managed properly (TS = 26,091 mg L−1, COD = 3471 mg L−1 and BOD5 = 246 mg L−1). While effluent from the digester contained pathogen indicator organisms (fecal coliform = 8.13 × 105 CFU/100 ml, E. coli = 3.27 × 105 CFU/100 ml), they were lower than the influent concentrations, and lower than reported concentrations in drainage canals. All digestate samples contained little to no heavy metals suggesting effective source separation. Data suggest that micro-scale biogas systems have potential to improve waste handling and meet standards associated with fertilizer application with proper post-digestion treatment.

scholarly journals Investigation of water quality of two rivers in Agbede –Wetlands in Southern Nigeria

2015 ◽  
Vol 17 (3) ◽  
pp. 451-462 ◽  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Fecal Coliform ◽  
Total Hardness ◽  
Bacteriological Examination ◽  
Physico Chemical ◽  
Significant Difference ◽  
Quality Water ◽  
The Mean

<div> <p>Water quality of Edion and Omodo Rivers were assessed chemically from March to October, 2010. The abstracted water samples were also subjected to bacteriological examination. The Rivers were each sampled at upstream and downstream locations. Twenty (20) physico-chemical characteristics which included heavy metals were determined in the laboratory. Air temperature ranged from the mean 30.69 to 31.38 &deg;C, water temperature 26.50 to 27.00 &deg;C, pH 7.05 to 7.15, electrical conductivity 7.99 to 25.55mScm<sup>-1</sup>, turbidity 24.11 to 54.65FTU, total dissolved solids 6.14 to 7.78mgl<sup>-1</sup>, total hardness 25.10 to 30.38mgl<sup>-1</sup>, chlorine 22.06 to 25.02mgl<sup>-1</sup>, BOD<sub>5</sub> 0.88 to 2.42mgl<sup>-1</sup>, DO 3.81 to 6.50mgl<sup>-1</sup> and the nutrient elements such as&nbsp; sulphate,&nbsp; phosphate and Nitrate ranged between 0.03 and 3.81mgl<sup>-1</sup>, sodium 1.87 to 3.81mgl<sup>-1</sup> and potassium 1.08 to 1.27mgl<sup>-1</sup>. Heavy metals levels were low, ranging from 0.0025 to 5.6650mgl<sup>-1</sup> (Copper 0.0350 to 0.0910mgl<sup>-1</sup>, Iron 0.2825 to 0.5112mgl<sup>-1</sup>, cadmium 0.0015 to 0.0104mgl<sup>-1</sup>, lead 0.0025 to 0.0230mgl<sup>-1</sup>, zinc 2.7013 to 5.6650mgl<sup>-1</sup> and chromium 0.0025 to 0.0263mgl<sup>-1</sup>). Conductivity, sulphate, zinc and fecal coliform count showed significant difference (<em>P&lt;0.05</em>) with low values indicating good water quality. Water Quality Index (WQI) revealed that Stations 2 and 4 respectively had good water quality. All the characteristics had their values within FEPA Limit except for Zn (&gt; 3.0mgl<sup>-1</sup>).</p> </div> <p>&nbsp;</p>

Sampling and analysis of the air-water interface with SEM and EDS of microlayers

1989 ◽  
Vol 47 ◽  
pp. 1004-1005
Author(s):  
Randall W. Smith ◽  
John Dash
Keyword(s):  
Heavy Metals ◽  
Surface Microlayer ◽  
Surface Films ◽  
Water Interface ◽  
Physical Processes ◽  
Infrared Spectroscopic Analysis ◽  
Eds Analysis ◽  
Air Water Interface ◽  
Significant Area ◽  
Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

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