Treatment and Disposal of Municipal Sewage Sludge and it’s Resources Utilization as Construction Material

2011 ◽  
Vol 194-196 ◽  
pp. 2061-2064 ◽  
Author(s):  
Deng Ling Jiang ◽  
Guo Wei Ni
Keyword(s):  
Construction Material ◽  
Sewage Treatment ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Sludge Reduction ◽  
Reclaimed Land ◽  
Sludge Stabilization ◽  
Treatment And Disposal ◽  
By Products ◽  
Land Filling

During the process of sewage treatment, some by-products are generated and among them, the sludge stands out, because of the largest volume and mass generated, and for containing heavy metals in its composition. Sludge is generally disposed of through land filling and spreading on reclaimed land. It has resulted in seriously contamination. It is necessary to improve the method of the disposal of sludge. Balanced with the environmental and economic benefit, the disposal of sludge, the economy and the environment can be optimized so as to realize the sludge stabilization, sludge reduction and sludge reutilization.

Assessment of Environmental Quality of Soil Fertilized Grapefruit Trees with Municipal Sewage Sludge

2013 ◽  
Vol 671-674 ◽  
pp. 2736-2741
Author(s):  
Yin An Ming ◽  
Tao Tao
Keyword(s):  
Sewage Sludge ◽  
Environmental Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Land Application ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Limiting Factor

To reuse municipal sewage sludge safely, experiment was carried out on grapefruit trees fertilized with composted sludge from Shiweitou Sewage Treatment Plant in Xiamen City of China, and a method was introduced of how to assess the environmental quality of grapefruit trees soil fertilized with sludge by Set Pair Analysis (SPA) model. The results showed that the soil in the surface layer (0-15cm) and the deeper layer (15-30cm) was less clean, and the environment of soil was not polluted. Thus it was feasible to use sludge as fruit fertilizer. The maximum service life of sludge for continuous land application was estimated by taking Cd as the limiting factor, which would provide scientific guide and technical support for safe land application of sludge.

scholarly journals Possible Applications of Hardening Slurries with Fly Ash from Thermal Treatment of Municipal Sewage Sludge in Environmental Protection Structures

2016 ◽  
Vol 63 (1) ◽  
pp. 47-61 ◽  
Author(s):  
Paweł Falacinski ◽  
Łukasz Szarek
Keyword(s):  
Fly Ash ◽  
Sewage Sludge ◽  
Thermal Treatment ◽  
Sewage Treatment ◽  
Combustion Products ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Water Separation ◽  
Coal Combustion Products ◽  
Environmentally Safe

Abstract In Poland, in recent years, there has been a rapid accumulation of sewage sludge - a by-product in the treatment of urban wastewater. This has come about as a result of infrastructure renewal, specifically, the construction of modern sewage treatment plants. The more stringent regulations and strategic goals adopted for modern sewage management have necessitated the application of modern engineering methodology for the disposal of sewage sludge. One approach is incineration. As a consequence, the amount of fly ash resulting from the thermal treatment of municipal sewage sludge has grown significantly. Hence, intensive work is in progress for environmentally safe management of this type of waste. The aim of the experiment was to evaluate the possibility of using the fly ash that results from municipal sewage sludge thermal treatment (SSTT) as an additive to hardening slurries. This type of hardening slurry with various types of additives, e.g. coal combustion products, is used in the construction of cut-off walls in hydraulic structures. The article presents the technological and functional parameters of hardening slurries with an addition of fly ash obtained by SSTT. Moreover, the usefulness of these slurries is analysed on the basis of their basic properties, i.e. density, contractual viscosity, water separation, structural strength, volumetric density, hydraulic conductivity, compressive and tensile strength. The mandated requirements for slurries employed in the construction of cut-off walls in flood embankments are listed as a usefulness criteria. The article presents the potential uses of fly ash from SSTT in hardening slurry technology. It also suggests directions for further research to fully identify other potential uses of this by-product in this field.

scholarly journals Ecotoxicity Assessment of Stabilized Sewage Sludge from Municipal Sewage Treatment Plant

2016 ◽  
Vol 22 (3) ◽  
pp. 157-166 ◽  
Author(s):  
Elżbieta Włodarczyk ◽  
Marta Próba ◽  
Lidia Wolny
Keyword(s):  
Sewage Sludge ◽  
Sewage Treatment ◽  
Daphnia Pulex ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Water Extract ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Test Results ◽  
Municipal Sewage Treatment Plant

Abstract Aim of this study was to evaluate the ecotoxicity of municipal sewage sludge conditioned with polyelectrolytes, taken from selected sewage treatment plant. Using the bioindication analysis overall toxicity was assessed, which allows to know the total toxicity of all the harmful substances contained in sewage sludge, in many cases acting synergistically. To prepare a sample of sludge for the basic test, all analyses were performed with a ratio of liquid to solid of 10:1 (water extract). Daphnia pulex biological screening test was used. A dilution series of an water extract of sludge were prepared to include within its scope the lowest concentration that causes 100% effect and the highest producing less than 10% of the effect within a specified range of the assay. The results of the test were read after 24 and 48 hours. Based on the research and analysis of test results it proved that the sewage sludge conditioned with polyelectrolytes exhibit the characteristics of eco-toxic.

A Pilot Plant Study of the Anaerobic Digestion of a Mixture of Municipal Sewage and Industrial Sludges

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2465-2468 ◽  
Author(s):  
K. Sugrue ◽  
G. Kiely ◽  
E. McKeogh
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Dry Matter ◽  
Agricultural Land ◽  
Pilot Project ◽  
County Council ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
One Year ◽  
Treatment And Disposal

With up to 100 tonnes/day of municipal sewage sludge, the municipality of Cork County Council had a problem of disposal. Spreading on agricultural land was the most common method of disposal until the 1986 EC Directive 86/278/EEC imposed severe restrictions on such a method. For industry in the county, the method of disposal was sometimes landfilling, but more often disposal at sea. The Helsinki Agreement terminates sea disposal. An evaluation of treatment and disposal means identified anaerobic digestion as an alternative to land and sea disposal. After anaerobic digestion, the sludge is sufficiently sti ilised to spread on land. A pilot project using a 20m3 reactor was studied for one year, using a fixture of municipal sewage sludge, yeast from a citric acid industry and abattoir waste (including blood, paunch contents and sheep's offal). The results were impressive; input sludge of 10% dry matter was reduced to 2%; the COD reduction approached 90%; in the mesophylic temperature range, the sludge was stabilised after an HRT of 29 days. The sludge after anaerobic digestion satisfies the EC limits for landspreading.

scholarly journals Application Status of Co-Processing Municipal Sewage Sludge in Cement Kilns in China

2019 ◽  
Vol 11 (12) ◽  
pp. 3315 ◽  
Author(s):  
Jingcheng Xu ◽  
Li Ping ◽  
Haihua Cao ◽  
Wei Liu ◽  
Yunhui Gu ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Sewage Treatment ◽  
Pollutant Emissions ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Cement Kiln ◽  
Continuous Growth ◽  
Construction Methods ◽  
Sludge Disposal ◽  
Cement Kilns

Municipal sewage sludge (MSS) disposal is an urgent issue in China with the continuous growth of sewage treatment capacity. Among various disposal methods, co-processing of MSS in cement kilns has been one of the most promising disposal methods in recent years. The present situation of sewage treatment and sludge disposal, the development of co-processing MSS in a cement kiln, and main disposal routes in China were discussed in this study. The results indicated that China had paid considerable attention to the technology and released correlative policies in the past few years. There were about 35 co-processing projects built in China, all of which were limited by construction scale and pollutant emissions. Due to differences in construction methods and economic conditions, China’s co-processing projects mainly employed three routes—direct addition to a transition chamber, addition to a precalciner after direct thermal drying, and addition to a precalciner after indirect drying. Summarizing and analyzing the characteristics of MSS co-processing would facilitate its development in China and similar regions.

Gasifying Kinetics Analysis on Mixing Municipal Solid Waste and Sludge

2013 ◽  
Vol 650 ◽  
pp. 629-633
Author(s):  
Song Tao Kong ◽  
Ping Cai ◽  
Li Jun Zhao ◽  
Jiang Tao Wei
Keyword(s):  
Sewage Treatment ◽  
Calorific Value ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Kinetics Parameters ◽  
Exponential Factor ◽  
Urban Sewage ◽  
Other Substances ◽  
Gasification Reaction ◽  
Design Construction

To gasify the mixture of sludge coming from urban sewage treatment residual and MSW is an ideal way to control the combustion of dioxins and other substances which pollute the atmosphere. Due to the complex composition of MSW and changing rapidly in the gasification parameters as much as possible, engineering require main ingredients and calorific value. The main ingredients of typical municipal sewage sludge and MSW are measured on thermobalance pyrolysis. The kinetics parameters of the gasification reaction are obtained, such as the activation energy and pre-exponential factor. These parameters synthesis mixture parameters provide the basis for hybrid gasification of the actual sludge and MSW reactor design, construction and operation.

scholarly journals Influence of sludge-ash composts on some properties of reclaimed land / Wpływ kompostów osadowo-popiołowych na niektóre właściwości rekultywowanego gruntu

2015 ◽  
Vol 41 (2) ◽  
pp. 82-88 ◽  
Author(s):  
Stanisław Baran ◽  
Anna Wójcikowska-Kapusta ◽  
Grażyna Żukowska ◽  
Marta Bik-Małodzińska ◽  
Sylwia Wesołowska-Dobruk
Keyword(s):  
Sewage Sludge ◽  
Exchange Capacity ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Available Phosphorus ◽  
Reclaimed Land ◽  
Degraded Soil ◽  
Native Soil ◽  
Sludge Ash ◽  
The Impact

Abstract The study was conducted in the area of the impact of sulfur mine in Jeziórko. The aim of the study was to assess changes in pH, cation exchange capacity and content of available phosphorus, potassium and magnesium after 6 years of conducting remediation. In the experiment (plots with an area of 15 m2) degraded soil was rehabilitating by post-floating lime and compost from sewage sludge, sewage sludge and ash from combined heat and power (CHP). Composts at a dose of dry matter 180 t · ha-1 (6%), were determined in accordance with Minister of the Environment Regulation from 2001, applied the following options: control (only native soil limed), compost from municipal sewage sludge, sewage sludge compost (80%) and ash (20%), compost from sewage sludge (70%) and ash (30%). The reclaimed plots were sown with mixture of rehabilitation grass. Single de-acidification, land fertilization and a further 6-year extensive (without fertilization) use had a different influence on the properties of the native soilless substratum. Irrespective of the reclamation manner, after six years land use in the upper layers, observed increase in the average content of available phosphorus, available potassium content does not changed significantly but recorded a tenfold decrease in the content of available magnesium.

scholarly journals Sanitary sewage

2021 ◽  
Vol 17 (5) ◽  
Author(s):  
Isadora Vitali Lobo ◽  
Juliana Heloisa Pinê Américo-Pinheiro
Keyword(s):  
Emerging Contaminants ◽  
Sewage Treatment ◽  
Domestic Sewage ◽  
Municipal Sewage ◽  
Sewage Treatment Plants ◽  
Physical Chemical ◽  
Treatment And Disposal ◽  
Domestic Effluent ◽  
Research Period ◽  
Selection Of

The treatment and disposal of domestic sewage is one of Brazil's main challenges. Sewage composition varies with the habits of the population and the frequency with which new contaminants are released into the environment. This study is a bibliographical review of the main aspects related to the characterization and composition of sanitary sewage, types of sewage treatment systems and pertinent legislation; and toxicity of domestic effluents. The review was based on publications available on Science Direct, Google Scholar and Scielo, as well as on printed publications, relevant legislation, and normative instructions. The research period adopted for the selection of publications was from 2005 to 2021. We found out that, in addition to the levels of organic matter from domestic sewage, residues from products used in daily life, such as pharmaceuticals and cleaning products, can be found in effluents in concentrations harmful to the environment. Often, the types of treatment used in municipal sewage treatment plants do not efficiently remove these contaminants. Thus, even if sewage is treated to meet the limits required for the physical-chemical and biological parameters established by law, domestic effluent can present a high potential for toxicity to various aquatic species such as microcrustaceans, mollusks and fish. Thus, ecotoxicological analyses represent a remarkable mechanism for indicating the efficiency of removal of emerging contaminants present in treated sanitary effluent, in addition to indicating the deleterious effects caused by these residues to the environment and ecosystems associated with the receiving water body.

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