Consolidation Characteristics of Wastewater Sludge

2008 ◽  
pp. 309-309-15 ◽  
Author(s):  
AH Aydilek ◽  
TB Edil ◽  
PJ Fox
Keyword(s):  
Wastewater Sludge

Potential of Palm Oil Empty Fruit Bunch as Biogas Substrate

2019 ◽  
Vol 2 (1) ◽  
pp. 59-64
Author(s):  
Vincentius Vincentius ◽  
Evita H. Legowo ◽  
Irvan S. Kartawiria
Keyword(s):  
Palm Oil ◽  
Fermentation Process ◽  
Biogas Production ◽  
Wastewater Sludge ◽  
Empty Fruit Bunch ◽  
Alternative Source ◽  
The Earth ◽  
The One ◽  
Wet Fermentation ◽  
Water Ratio

Natural gas is a source of energy that comes from the earth which is depleting every day, an alternative source of energy is needed and one of the sources comes from biogas. There is an abundance of empty fruit bunch (EFB) that comes from palm oil plantation that can become a substrate for biogas production. A methodology of fermentation based on Verein Deutscher Ingenieure was used to utilize EFB as a substrate to produce biogas using biogas sludge and wastewater sludge as inoculum in wet fermentation process under mesophilic condition. Another optimization was done by adding a different water ratio to the inoculum mixture. In 20 days, an average of 6gr from 150gr of total EFB used in each sample was consumed by the microbes. The best result from 20 days of experiment with both biogas sludge and wastewater sludge as inoculum were the one added with 150gr of water that produced 2910ml and 2185ml of gas respectively. The highest CH 4 produced achieved from biogas sludge and wastewater sludge with an addition of 150gr of water to the inoculum were 27% and 22% CH 4 respectively. This shows that biogas sludge is better in term of volume of gas that is produced and CH percentage.

MICROWAVE ENHANCED BIODEGRADABILITY OF MEAT PROCESSING WASTEWATER SLUDGE

2017 ◽  
Vol 16 (1) ◽  
pp. 149-155
Author(s):  
Sandor Beszedes ◽  
Lajos Ludanyi ◽  
Gabor Szabo ◽  
Cecilia Hodur
Keyword(s):  
Wastewater Sludge ◽  
Meat Processing

Современные методы дезинвазии осадка сточных вод

2020 ◽  
Author(s):  
N. Shakhrai ◽  
N. Dobrynina ◽  
T. Priimak
Keyword(s):  
Preventive Measures ◽  
Wastewater Sludge ◽  
Parasitic Diseases ◽  
Wastewater Disposal ◽  
Judicial Decisions ◽  
Regulatory Documents ◽  
Environmental Objects ◽  
Water And Wastewater ◽  
The Russian Federation ◽  
Rules Set

Организации водопроводно-канализационного хозяйства в рамках технологических процессов водоотведения должны обеспечивать дезинвазию очищенных сточных вод и осадков, образующихся в результате их очистки. В соответствии с пунктом 1.2 СанПиН 3.2.3215-14 Профилактика паразитарных болезней на территории РФ , санитарные правила устанавливают требования к комплексу организационных, санитарно-противоэпидемических (профилактических) мероприятий, проведение которых направлено на предупреждение возникновения и распространения паразитарных заболеваний. Проведена оценка нормативных документов по дезинвазии объектов окружающей среды, а также решений по судебным делам в части ее проведения. Выявлены разногласия в документах по проведению дезинвазии, в связи с чем направлены обращения в различные организации с предложением гармонизировать правила с целью исключения разночтений. Изучены индустриальные методы дезинвазии осадка сточных вод. Показано, что происходит необоснованное навязывание препарата Бингсти .Within the frames of the wastewater disposal processes water and wastewater utilities shall provide for the disinvasion of effluents and wastewater sludge generated in the process of wastewater treatment. In accordance with paragraph 1.2 of SanPiN 3.2.3215-14 Prevention of parasitic diseases in the territory of the Russian Federation , the sanitary rules set out the requirements for a comprehensive set of organizational, sanitary and anti-epidemic (preventive) measures, that are aimed at preventing the occurrence and spread of parasitic diseases. The assessment of regulatory documents on the disinvasion of environmental objects, as well as judicial decisions regarding its implementation, was carried out. Controversies were revealed in the regulatory documents, and appeals were sent to various organizations with a proposal to harmonize the rules in order to exclude discrepancies. Industrial methods for disinvasion of wastewater sludge were studied. It is shown that there is an unreasonable aggressive selling of Bingsti ineffective product.

Physical properties of dewatered wastewater sludge for landfilling

1996 ◽  
Vol 34 (3-4) ◽  
pp. 533-540 ◽  
Author(s):  
A. Koenig ◽  
J. N. Kay ◽  
I. M. Wan
Keyword(s):  
Shear Strength ◽  
Hong Kong ◽  
Municipal Wastewater ◽  
Compressibility Factor ◽  
Wastewater Sludge ◽  
Municipal Wastewater Treatment ◽  
Intrinsic Resistance ◽  
Coefficient Of Consolidation ◽  
Minimum Requirement ◽  
Geotechnical Stability

In the context of landfilling dewatered wastewater sludge in Hong Kong, with landfills up to 140 m high, one of the most significant properties of sludge is its physical nature with regard to moisture characteristics and associated geotechnical stability. Commonly, lower limits are set on total solids content, but no geotechnical stability criteria are applied with the exception of Germany where a minimum requirement for vane shear strength is set at 25 kN/m2. The purpose of this study was to determine and evaluate dewatered wastewater sludge from three Hong Kong municipal wastewater treatment plants with regard to the following physical and geotechnical properties: (i) vane shear strength; (ii) consolidation characteristics such as compression index, compressibility factor, coefficient of consolidation and compressibility coefficient; and (iii) hydraulic characteristics such as permeability and intrinsic resistance. Although dewatered sludge exhibits quite different characteristics as compared to soils, predictive logarithmic relationships may be established between various properties which are consistent with the critical state model for soils, conventional filtration and consolidation theory. Such representation provides a valuable basis for understanding the sludge characteristics and behaviour to landfill design.

Hydrothermal liquefaction of municipal wastewater sludge and nutrient recovery from the aqueous phase

Biofuels ◽  
2021 ◽  
pp. 1-6
Author(s):  
Vinod Kumar ◽  
Krishna Kumar Jaiswal ◽  
Mikhail S. Vlaskin ◽  
Manisha Nanda ◽  
M. K. Tripathi ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Municipal Wastewater ◽  
Hydrothermal Liquefaction ◽  
Wastewater Sludge ◽  
Nutrient Recovery

scholarly journals Microwave and Ultrasound Based Methods in Sludge Treatment: A Review

2021 ◽  
Vol 11 (15) ◽  
pp. 7067
Author(s):  
Zoltán Jákói ◽  
Balázs Lemmer ◽  
Cecilia Hodúr ◽  
Sándor Beszédes
Keyword(s):  
Wastewater Sludge ◽  
Process Efficiency ◽  
H2o2 Treatment ◽  
Treatment Conditions ◽  
Appropriate Treatment ◽  
Scientific Papers ◽  
Health Related ◽  
Scientific Results ◽  
Treatment Procedures ◽  
Anaerobic Digestibility

The amount of waste activated sludge (WAS) is increasing annually, and since it presents potential environmental and health-related risks, an appropriate treatment and stabilization process is needed. It has been shown in numerous studies in the past few decades that amongst the advanced treatment methods of sludge, microwave and ultrasound-based processes offer promising and effective alternatives. The main advantage of these physical methods is that they are energy-efficient, easy to implement and can be combined with other types of treatment procedures without major difficulties. In this review article we would like to present the recent scientific results of the microwave, ultrasound and combined (microwave-alkaline, microwave-H2O2, ultrasound-alkaline and ultrasound-H2O2) treatment of wastewater sludge, in terms of different process-efficiency indicators. Although the obtained results somewhat vary between the different scientific papers, it can be undoubtedly stated that both MW and US—either individually or in combination with chemical treatments—can enhance several aspects of sludge processing, like increasing the SCOD/TCOD rate, disintegration degree (DD), or the anaerobic digestibility (AD), but the extent of these increments clearly depends on the treatment conditions or parameters.

scholarly journals Dynamic of Morphological and Physiological Parameters and Variation of Soil Characteristics during Miscanthus × giganteus Cultivation in the Diesel-Contaminated Land

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 798
Author(s):  
Valentina Pidlisnyuk ◽  
Andriy Herts ◽  
Volodymyr Khomenchuk ◽  
Aigerim Mamirova ◽  
Oleksandr Kononchuk ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Contaminated Soils ◽  
Soil Characteristics ◽  
Physiological Parameters ◽  
Wastewater Sludge ◽  
Contaminated Land ◽  
Miscanthus Giganteus ◽  
Uncontaminated Soil ◽  
Stems And Leaves ◽  
Biochar Amendment

Miscanthus × giganteus (M. × giganteus) is a perspective plant produced on marginal and contaminated lands with biomass used for energy or bioproducts. In the current study, M. × giganteus development was tested in the diesel-contaminated soils (ranged from 250 mg kg−1 to 5000 mg kg−1) and the growth dynamic, leaves quantity, plants total area, number of harvested stems and leaves, SPAD and NPQt parameters were evaluated. Results showed a remarkable M. × giganteus growth in a selected interval of diesel-contaminated soil with sufficient harvested biomass. The amendment of soil by biochar 1 (produced from wastewater sludge) and biochar 2 (produced from a mixture of wood waste and biohumus) improved the crop’s morphological and physiological parameters. Biochar 1 stimulated the increase of the stems’ biomass, while biochar 2 increased the leaves biomass. The plants growing in the uncontaminated soil decreased the content of NO3, pH (KCl), P2O5 and increased the content of NH4. Photosynthesis parameters showed that incorporating biochar 1 and biochar 2 to the diesel-contaminated soil prolonged the plants’ vegetation, which was more potent for biochar 1. M. × giganteus utilization united with biochar amendment can be recommended to remediate diesel-contaminated land in concentration range 250–5000 mg kg−1.

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.

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