scholarly journals INFLUENCE OF TREATED SEWAGE SLUDGE APPLICATIONS ON CORN AND SECOND CROP WHEAT YIELD AND SOME PROPERTIES OF SANDY CLAY SOIL

2015 ◽  
Vol 21 (1) ◽  
pp. 1 ◽  
Author(s):  
Sezai DELIBACAK ◽  
Ali Riza ONGUN
Keyword(s):  
Sewage Sludge ◽  
Clay Soil ◽  
Wheat Yield ◽  
Sandy Clay ◽  
Treated Sewage

Consolidation of cement-treated sewage sludge using vertical drains

2005 ◽  
Vol 42 (2) ◽  
pp. 528-540 ◽  
Author(s):  
J Chu ◽  
M H Goi ◽  
T T Lim
Keyword(s):  
Sewage Sludge ◽  
Land Reclamation ◽  
Model Tests ◽  
Waste Materials ◽  
Test Results ◽  
Prefabricated Vertical Drains ◽  
Vertical Drains ◽  
Treated Sewage ◽  
The World

The disposal of sewage sludge and other waste materials has become a problem in many cities around the world. A study on the use of sewage sludge and other waste materials for land reclamation has been conducted. One of the methods studied is to dispose of the sludge after it has been mixed with binders or other waste materials and then to consolidate the mixture on site using surcharge and prefabricated vertical drains (PVDs). To study the consolidation behaviour of the sludge–binder mixtures around PVDs, model tests using a fully instrumented consolidation tank were conducted. Some of the test results are presented in this paper. The study shows that PVDs are effective in consolidating the sludge and binder mixtures, provided that the PVDs used can sustain large bending and resist corrosion by the chemicals in the sludge.Key words: consolidation, geoenvironmental, land reclamation, prefabricated vertical drains.

scholarly journals Assessing arsenic redox state evolution in solution and solid phase during As(III) sorption onto chemically-treated sewage sludge digestate biochars

2019 ◽  
Vol 275 ◽  
pp. 232-238 ◽  
Author(s):  
Suchanya Wongrod ◽  
Stéphane Simon ◽  
Eric D. van Hullebusch ◽  
Piet N.L. Lens ◽  
Gilles Guibaud
Keyword(s):  
Sewage Sludge ◽  
Redox State ◽  
Solid Phase ◽  
Treated Sewage ◽  
State Evolution ◽  
Chemically Treated

scholarly journals Sewage Sludge Incorporating Into Fired Clay Brick: Indoor Air Quality Testing

2019 ◽  
Vol 8 (12) ◽  
pp. 1113-1118
Keyword(s):  
Air Quality ◽  
Sewage Sludge ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Occupational Safety ◽  
Clay Soil ◽  
Raw Materials ◽  
Treatment Plant ◽  
Clay Brick ◽  
Huge Amount

Sewage industry have generated huge amount of sewage sludge. It is found that the amount of sewage sludge generated by Malaysia sewerage companies has reached 5.3 million m3 per year. Sewage sludge (SS) are usually disposed into a landfill or incineration but due to the huge amount of sludge produced and limited availability of lad, it has become an environmental hazard. Thus, this research was conducted to utilize sludge that resulted from the wastewater treatment plant into fired clay brick as well as contributed to other alternative disposal method for the sludge. This research focuses on the investigation of indoor air quality of fired clay brick incorporating with SS. The SS was collected from IWK located at Senggarang and Perwira whilst clay soil was collected at Yong Peng, Johor. The characteristics of SS and clay soil were analyzed using X-ray fluorescence (XRF). From the results, it showed that SS was high with silicon oxide (SiO2 ) and zinc (Zn) that makes it compatible to replace clay soil as raw materials. Next, two types of sewage sludge brick (SSB) which are Senggarang brick (SB) and Perwira brick (PB) were incorporated with 0%, 1%, 5%, 10% and 20% of SS respectively. Then, the compressive strength test was conducted in accordance with the British Standard BS 3921: 1985. Based on the result, it shows that 5% of SS replacements as clay soil into fired clay brick have achieved the optimum strength. As for the indoor air quality (IAQ) test were done in walk-in stability chamber (WiSC) and the gas emission was compared with the Industry Code of Practice on Indoor Air Quality (ICOP-IAQ) through Department of Occupational Safety and Health Malaysia (DOSH, 2010). From the result, IAQ brick for SB and PB showed that up to 5% in fired clay brick were complied with the standard which below the acceptable limit that has provided for wall, column and cube formed. Thus, as a conclusion this method provided an alternative disposal method for the SS whilst producing a new low-cost building material with no negative effect to human as well as benefit to the environment.

scholarly journals The accumulation of zinc in oat grown in soils treated by incubated sewage sludge with peat and straw

2011 ◽  
Vol 48 (No. 12) ◽  
pp. 548-555
Author(s):  
J. Balík ◽  
P. Tlustoš ◽  
J. Száková ◽  
D. Pavlíková ◽  
J. Černý
Keyword(s):  
Sewage Sludge ◽  
Dry Matter ◽  
Biomass Yield ◽  
Anaerobic Conditions ◽  
Treated Sewage ◽  
Zn Content ◽  
Aerobic And Anaerobic ◽  
Predominant Effect ◽  
Aerobic And Anaerobic Conditions ◽  
Different Soils

The effect of addition of treated sewage sludge on the accumulation of Zn in plants was tested in pot experiment. The additions of eight months preincubated sewage sludge at temperature of 20°C under aerobic and anaerobic conditions with addition of peat and straw were tested. Two different combinations were designed: first consisted of 50% sludge + 35% peat and 15% straw, and second was made of 50% sludge + 5% peat and 45% straw (expressed as dry matter). Three different soils Chernozems, Luvisols, and Fluvisols and three sludges were tested in the experiment. Oat (cv. Pan) was planted as experimental crop. All treatments were fertilized by NPK. Green biomass of oat was harvested and analyzed. At treatments with addition of both composted sludges pH dropped down causing higher mobility of Zn in sewage sludge. Oat grown in these treatments contained higher amount of Zn compared to untreated soils. The application of anaerobically treated sludge led to increased Zn content in biomass compared to aerobically incubated one. Predominant effect on Zn accumulation in plants was determined by tested soil. The highest content was determined in plants grown on Fluvisols. The biomass yield was more affected by source of sewage sludge than by the soil type used. Treatments amended by anaerobically incubated sludge showed tendency to higher biomass production due to their higher content of nitrogen and carbon.

AVAILABILITY OF ZINC, COPPER AND NICKEL TO PLANTS GROWN IN SEWAGE-TREATED SOILS

1978 ◽  
Vol 58 (3) ◽  
pp. 381-389 ◽  
Author(s):  
A. J. MACLEAN ◽  
A. J. DEKKER
Keyword(s):  
Sewage Sludge ◽  
Toxic Effect ◽  
Soil Ph ◽  
Clay Soil ◽  
Pot Experiment ◽  
Toxic Effects ◽  
Order Of Magnitude ◽  
Loam Soil ◽  
Extractable Metals

In a pot experiment with additions of Zn, Cu and Ni to a loam soil (pH, 6.3) at rates up to 480 ppm, sewage sludge eliminated the toxic effect of Cu and reduced the toxic effect of Ni on corn, reduced the concentrations of Zn and Ni in the plants, and reduced the amounts of DTPA-extractable metals and of 0.01 M CaCl2-soluble Zn and Ni in the soil. Lettuce grown with the metals and sludges was more susceptible than corn to the toxic effects of the three metals in the loam soil and to Zn in a clay soil (pH 5.9). In the latter soil, Ni was less toxic to lettuce than to corn. The concentrations of metals were considerably higher in lettuce than in corn. Liming of the clay soil to a pH of 6.5 eliminated the toxic effect of Ni on corn and of Zn and Ni on lettuce and reduced the concentrations of the metals in the plants and the amounts of DTPA-extractable and CaCl2-soluble metals in the soil. The order of magnitude of the DTPA-extractable metals was Cu > Zn > Ni whereas the order for CaCl2-soluble metals was Ni > Zn> Cu. Variability in the effect of the metals between crops and soils precluded the use, except as a preliminary guide, of a Zn equivalent concept based on the assumption that Cu is twice as toxic and Ni is eight times as toxic as Zn.

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