Future proof decentralised sludge recycling Elodry-pro®

2016 ◽  
Vol 15 (3) ◽  
pp. 840-848
Author(s):  
B. Geraats ◽  
M. Parnowska ◽  
L. Kox
Keyword(s):  
Sewage Sludge ◽  
Modular Design ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Cost Effective ◽  
Raw Material ◽  
Available Phosphorus ◽  
Low Carbon ◽  
Nox Formation

Abstract At Linz-Unkel (Germany) sewage treatment plant the first full scale state-of-art EloDry-Pro® plant for sewage sludge has been constructed, consisting of the PYREG® reactor and the EloDry® belt dryer. The system is characterised by small footprint, flexibility, modular design and efficient energy management. The sludge dried using an EloDry® belt dryer undergoes staged combustion using the PYREG® module at around 6,500°C. This reduces the sludge to a fraction of its original volume while disinfecting it and removing micro-pollutants such as pharmaceutical residues. The residual ash, which has a high percentage of plant-available phosphorus, is then supplied to the fertiliser industry as a recycled raw material. The working principle of EloDry-Pro® installation, including heat flows of the system, is presented. The paper describes Pyreg®'s advanced emission control systems, preventing NOx formation and removing harmful substances such as mercury and sulphur. The EloDry-Pro® technology is an innovative and cost-effective approach to decentralised thermal recycling of sewage sludge. Both sewage sludge volumes and transportation costs are reduced by up to 90%, therefore making it a low carbon cost-effective alternative to the transportation of sludge and allowing local sludge processing at plants under 100 k population.

scholarly journals Regulatory and technological prerequisites of the use of sewage sludge for the production of organic fertilizers

2020 ◽  
pp. 162-170
Author(s):  
R. Edgecock ◽  
V. V. Bratishko ◽  
I. V. Zinchenko ◽  
S. H. Karpus ◽  
D. O. Milko ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Municipal Wastewater ◽  
Raw Materials ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Raw Material ◽  
Organic Fertilizers ◽  
Mineral Fertilizers

Annotation Purpose. Summarize the regulatory and technological requirements for the production of organic (organo-mineral) fertilizers on the base of sewage sludge. Methods. Analysis and generalization of the requirements of regulatory documents on the management of organic waste and their use as raw materials for the production of organic fertilizers and soil improvers. Results. The current legislative, departmental and regulatory documentary base in Ukraine concerning the treatment of sediment resulting from biological sewage treatment at municipal wastewater treatment plants for its further use in agriculture as fertilizers is analysed. Indicators are identified and analysed to determine the possibility, feasibility, efficiency and scope of organic fertilizers produced using sewage sludge. The analysis of changes in the content of organic matter and total nitrogen in the sewage sludge during its storage at the sewage treatment plant sites is presented. The technological feasibility of using sludge of different shelf life in composting production has been determined. Conclusions 1. The regulatory framework of Ukraine contains a sufficiently complete list of indicators that should be met by organic raw materials (sewage sludge) for further use as organic fertilizers. Some of these indicators – bio security and heavy metals content – can be improved in the composting process of fertilizers. 2. Fresh sediment, as well as sediment accumulated in the last late autumn and winter periods, is of main value for use as a raw material in the production of organic fertilizers. 3. The use in the production of compost sludge stored on sludge sites for a period of half a year or more requires special control of the process of decontamination. In this case, it is advisable to use additional means of wastewater decontamination. Keywords: heavy metals, manure, humus, decontamination, composting, organic fertilizers, sewage sludge.

Basic investigation on the chemical forms of heavy metals in a sewage treatment plant

2000 ◽  
Vol 42 (9) ◽  
pp. 159-165 ◽  
Author(s):  
H. Morita ◽  
H. Tsuboi
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Energy Resource ◽  
Point Of View ◽  
Raw Material ◽  
Chemical Forms ◽  
Basic Study

Sewage sludge mainly consists of organic matter, and it is rich in nutrients. Therefore, sewage sludge is beneficial as an energy resource and as a raw material for fertilizer. However, heavy metals in it are the obstacle to utilization of sludge. This study was conducted in order to know the chemical forms of heavy metals and their behavior in a sewage treatment plant as a basic study for development of technology to reduce heavy metals in sludge. Chemical methods and biological methods, such as extraction using acid, bacteria leaching, are applied to reduce heavy metals. In using these methods, the efficiency depends on the chemical forms of heavy metals. From this point of view, factors, which affect the chemical forms of heavy metals, were investigated through the survey at some plants of different conditions. Besides, experiments on the anaerobic digestion process, in which the chemical forms of heavy metals were expected to change, were conducted. As the results of these studies, it was found that the chemical forms of heavy metals and their behavior vary according to the species of heavy metals. In comparison of zinc (Zn), copper (Cu) and nickel (Ni), Cu was found to be changed most easily into a stable chemical form such as carbonate and sulfide. Zn was the second to Cu in its tendency to be stabilized. As for Ni, the tendency was further less than Zn.

scholarly journals Renewable energy from biogas generated by sewage sludge – relationship between sludge volume and power generated

2008 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Suzana Ramli ◽  
Aminuddin Mohd Baki ◽  
Muhamad Azmi Ayub ◽  
Suhaimi Abdul Talib ◽  
Ramlah Mohd Tajuddin ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Sewage Sludge ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Cost Effective ◽  
Anaerobic Digesters ◽  
Decomposition Of Organic Matter ◽  
Main Components ◽  
The Cost

Biogas is a product of decomposition of organic matter during the process of anaerobic digestion (AD). The main components are methane and carbon dioxide. The methane content in the biogas enables it to be used as fuel which can be converted to heat and electricity. The biogas generated by the anaerobic digesters has the potential to be redirected from the flaring facilities to renewable energy (RE) facilities. The biogas may then be used to generate electricity, which in turn can operate the sewage treatment plant (STP) itself. However, feedbacks from the sewerage industry indicated that heavy investments are needed for any RE initiatives on biogas generated by sewage sludge. In order to find the cost effective way of generating energy from biogas, fundamental relationships are necessary to enable development of prototype in the future. Thus, this paper presents a study to establish the relationship between the volume of sludge and the amount of power and energy that can be generated.

Operational Results of Melting System for Sewage Sludge

1991 ◽  
Vol 23 (10-12) ◽  
pp. 1773-1781 ◽  
Author(s):  
Daisaku Yashiki ◽  
Tadahiro Murakami
Keyword(s):  
Sewage Sludge ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Melting Furnace ◽  
Effective Utilization ◽  
History Of ◽  
Sludge Properties ◽  
Operation Results

Sludge melting furnaces have been applied recently to the treatment of a great deal of sludge generated from the sewage treatment plant. In this report, an explanation is provided of the history of system introduction, outline of treatment flow, sludge properties, operation results and effective utilization of slag generated at the reflector melting furnace, which began operation in July 1988 at the Futakami Sewage Treatment Plant in Toyama Prefecture. The melting furnace almost totally satisfies the needs of its design, and the properties of the generated melted slag exhibit the features that fully enable its effective utilization.

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 The synergistic effect of sewage sludge biochar and Trichoderma harzianum on soybean yield

2019 ◽  
pp. 1183-1187 ◽  
Author(s):  
Alyson Silva de Araujo ◽  
Luiz Eduardo Bassay Blum ◽  
Cícero Célio de Figueiredo
Keyword(s):  
Sewage Sludge ◽  
Synergistic Effect ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Federal District ◽  
Biological Properties ◽  
Mineral Fertilizers ◽  
Trichoderma Spp ◽  
Final Destination

The use of sewage sludge to produce biochar is one of the best alternatives for the final destination of this material, allowing for reuse of nutrients and reducing the dependence on mineral fertilizers. Sewage sludge biochar (SSB) stands out as an enhancer of the physical, chemical and biological properties of the soil. The use of beneficial microorganisms such as Trichoderma spp. in combination with biochar may have a synergistic effect on the development of different plants and needs to be better studied. The SSB was produced from sewage sludge biomass (SS) obtained from the sewage treatment plant (STP) of the Federal District Environmental Sanitation Company (CAESB), Brasilia, DF, Brazil. The SSB was produced in an electric tubular furnace at 500 °C and showed the following characteristics: carbon (19%), nitrogen (2.3%), hydrogen (1.7%), specific surface area (52.5 m2 g-1), pore volume (0.053 ml g-1). An experiment was carried out in a greenhouse to evaluate the synergistic effect of SSB application (0.5% w/w) in combination with T. harzianum (TH) on soybean development. The treatments adopted were: (1) control – autoclaved soil, (2) TH, (3) SSB and (4) SSB + TH. The SSB was applied 15 days before soybean planting and the TH was applied to the soil two times, once at eight days before planting and the other at the time of planting. The SSB resulted in a 200% increase in the number of pods when compared to the exclusive application of T. harzianum. Application of SSB with T. harzianum increased germination by 20%, as well as a 70% increase in fresh and dry soybean mass in relation to the control. The agronomic indices evaluated in this study demonstrated that the use of SSB in conjunction with T. harzianum presents a synergistic effect, allowing for better development of the soybean plants.

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.

scholarly journals Low Carbon Concept of Sruni Village through The System of Renewable Energy

2018 ◽  
Vol 1 (1) ◽  
pp. 11
Author(s):  
Erni Setyowati ◽  
Nashrullah Dahlan Lubis ◽  
Subrata Aditama Kittie A.U ◽  
Agitta Raras Putri
Keyword(s):  
Renewable Energy ◽  
Urban Areas ◽  
Demographic Data ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Rain Water ◽  
Water Harvesting ◽  
Low Carbon ◽  
Rain Water Harvesting

Indonesia is the fourth most populous country in the world. The highest population density exists in urban areas and gradually becomes lower in periphery or rural. Therefore the city in Indonesia often looks slum because of over density. The village is the smallest part of a city. In crowded cities there are often slum villages. This paper highlights a model of slum villages in Wonosobo, Sruni village, and solutions to transform socio-cultural communities through renewable energy design based on low carbon concept. The method used is quantitative method based on demographic data of Sruni village, Wonosobo. Based on data and analysis, it is found that renewable energy that can be applied in Sruni village are sanitation, drainage and water waste management, solid waste, rain water harvesting, water wheel and solar panel energy. At the end of the discussion, it is concluded that there are needs to be re-densification or verticalization of the house, in order to obtain more public green open spaces. Meanwhile, based on quantitative analysis, Sruni village needs rain water harvesting system, additional 1 unit of communal Sewage Treatment Plant (STP) serving 80-100 households gray and black water, and 1 units of water wheels to accomodate electricity need of four inhabitant RTs in Sruni village .

scholarly journals RISK ANALYSIS OF ACCUMULATION OF HEAVY METALS FROM SEWAGE SLUDGE IN SOIL FROM THE SEWAGE TREATMENT PLANT IN STARACHOWICE

2019 ◽  
Vol 11 (4) ◽  
pp. 287-295
Author(s):  
ROBERT KOWALIK ◽  
◽  
JAROSŁAW GAWDZIK ◽  
BARBARA GAWDZIK ◽  
◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Risk Analysis ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant
Sign in / Sign up

Export Citation Format

Share Document