Sludge Treatment Technologies and Systems, an Introduction

2020 ◽  
pp. 1-25
Author(s):  
Bogdanka Radetic
Keyword(s):  
Sludge Treatment ◽  
Treatment Technologies

scholarly journals Carbon Footprint Analyses of Mainstream Wastewater Treatment Technologies under Different Sludge Treatment Scenarios in China

Water ◽  
2015 ◽  
Vol 7 (12) ◽  
pp. 918-938 ◽  
Author(s):  
Chunyan Chai ◽  
Dawei Zhang ◽  
Yanling Yu ◽  
Yujie Feng ◽  
Man Wong
Keyword(s):  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Sludge Treatment ◽  
Treatment Technologies

Wastewater sludge as a resource: sludge disposal strategies and corresponding treatment technologies aimed at sustainable handling of wastewater sludge

2002 ◽  
Vol 46 (10) ◽  
pp. 295-303 ◽  
Author(s):  
H. Ødegaard ◽  
B. Paulsrud ◽  
I. Karlsson
Keyword(s):  
Wastewater Sludge ◽  
Treatment Concept ◽  
Sludge Treatment ◽  
Disinfection Methods ◽  
Sludge Disposal ◽  
Treatment Technologies

The paper discusses different strategies for the disposal of wastewater sludge, particularly the “use on land” strategy and the “productification” strategy. In the “use on land” strategy the new regulations in Europe call for stabilization as well as disinfection of sludge to be used on land. The paper discusses the design and operation experiences with stabilization/disinfection methods in Norway where such treatment has been compulsory since 1995. In the “productification” strategy it is differentiated between the production of “bio-soils” and production of specific products (energy, nutrients, coagulants etc) and the “marketability” of these products is evaluated. An example of a sludge treatment concept aimed at recycling - the KREPRO process - is presented.

scholarly journals Economic Issues in the Composting of Sewage Sludges

1979 ◽  
Vol 8 (2) ◽  
pp. 249-262
Author(s):  
Victor Kasper ◽  
Donn Derr
Keyword(s):  
Sewage Sludge ◽  
Waste Management ◽  
Waste Treatment ◽  
Fish Kills ◽  
Inexpensive Method ◽  
Sludge Treatment ◽  
Economic Issues ◽  
Algae Blooms ◽  
Treatment Technologies ◽  
Ocean Dumping

In the northeast, communities have been faced with a variety of waste management problems brought about by population concentrations and higher consumption levels. One waste that has been receiving increased attention is sewage sludge generated by municipal waste treatment plants. Although alternative sludge treatment technologies are available, a number of municipalities have been ocean dumping. For example, in New Jersey it has been estimated that of the 230,000 dry tons of sludge produced annually, nearly two-thirds is being ocean dumped (Bolan et al.). Although ocean dumping is a relatively inexpensive method from the viewpoint of the municipality, it has become costly in terms of ocean and coastal resources (Colacicco et al., U.S. Department of Commerce). As a result of contaminated beaches, algae blooms, and fish kills (1976 and 1977) legislation was passed in 1977 to stop the ocean dumping of sludge by December 31, 1981 (U.S. Congress, 1977).

Effect of ambient temperatures on disinfection efficiency of various sludge treatment technologies

2013 ◽  
Vol 69 (1) ◽  
pp. 15-24
Author(s):  
Katrin Bauerfeld
Keyword(s):  
Municipal Wastewater ◽  
Microbiological Quality ◽  
Municipal Wastewater Treatment ◽  
Lime Treatment ◽  
Sludge Treatment ◽  
Ambient Temperatures ◽  
Sludge Stabilization ◽  
Biological Liquid ◽  
Treatment Technologies ◽  
Institute Of Technology

Sewage sludge produced during municipal wastewater treatment has to be treated efficiently in order to reduce impacts on the environment and on public health. In Germany and many countries, large quantities of sludge are reused in agriculture in order to recycle nutrients and organic material. In order to quantify the effect of different ambient temperatures on conventional and advanced sludge treatment technologies as well as on disinfection efficiency, a comprehensive research study was performed at Braunschweig Institute of Technology. The detailed results show that ambient temperature has a strong effect on biological liquid sludge stabilization and on natural dewatering and drying technologies, although microbiological quality of treated sludge, indicated by Escherichia coli concentration, does not meet the requirements for unrestricted reuse in agriculture. Composting and lime treatment of sludge are most efficient on reducing E. coli, as high temperatures and high pH values arise in the material respectively.

Sewage Management and Treatment

2020 ◽  
pp. 260-282
Keyword(s):  
Population Growth ◽  
Sewage Treatment ◽  
Septic Tank ◽  
Proper Treatment ◽  
Sludge Treatment ◽  
Activated Sludge System ◽  
Global Issue ◽  
Treatment Technologies ◽  
Pre Treatment ◽  
Sewage Treatment System

Accumulation of sewage is a global issue that occurs primarily due to the rising rate of population growth. Without proper treatment and management, uncontrolled sewage generation threatens human health, environment, and society. This chapter briefly introduces sewage management and regulations. The conventional method of sewage and sludge treatment consists of pre-treatment, primary, secondary, and tertiary treatments before the sewage is safe to be discharged. Several sewage treatment technologies are introduced, namely the septic tank, intermittent decanted extended aeration, activated sludge system, membrane sewage treatment system, and finally the anaerobic digester.

Performance analysis of power generating sludge combustion plant and comparison against other sludge treatment technologies

2010 ◽  
Vol 30 (2-3) ◽  
pp. 110-118 ◽  
Author(s):  
Mika Horttanainen ◽  
Juha Kaikko ◽  
Riikka Bergman ◽  
Minna Pasila-Lehtinen ◽  
Janne Nerg
Keyword(s):  
Performance Analysis ◽  
Sludge Treatment ◽  
Treatment Technologies

Evaluation of acute ecotoxicity removal from industrial wastewater using a battery of rapid bioassays

2014 ◽  
Vol 70 (12) ◽  
pp. 2056-2061 ◽  
Author(s):  
Jan Dries ◽  
Dominique Daens ◽  
Luc Geuens ◽  
Ronny Blust
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Environmental Protection Agency ◽  
Vibrio Fischeri ◽  
Toxicity Testing ◽  
Sludge Treatment ◽  
Test Kit ◽  
The Us ◽  
Treatment Technologies ◽  
Particle Ingestion

The present study compares conventional wastewater treatment technologies (coagulation–flocculation and activated sludge) and powdered activated carbon (PAC) treatment for the removal of acute ecotoxicity from wastewater generated by tank truck cleaning (TTC) processes. Ecotoxicity was assessed with a battery of four commercially available rapid biological toxicity testing systems, verified by the US Environmental Protection Agency. Chemical coagulation–flocculation of raw TTC wastewater had no impact on the inhibition of the bioluminescence by Vibrio fischeri (BioTox assay). Subsequent biological treatment with activated sludge without PAC resulted in BioTox inhibition-free effluent (<10% inhibition). In contrast, activated sludge treatment without PAC produced an effluent that significantly inhibited (>50%) (i) the bioluminescence by Photobacterium leiognathi (ToxScreen³ test kit), (ii) the photosynthesis by the green algae Chlorella vulgaris (LuminoTox SAPS test kit), and (iii) the particle ingestion by the crustacean Thamnocephalus platyurus (Rapidtoxkit test kit). The lowest inhibition was measured after activated sludge treatment with the highest PAC dose (400 mg/L), demonstrating the effectiveness of PAC treatment for ecotoxicity removal from TTC wastewater. In conclusion, the combination of bioassays applied in the present study represents a promising test battery for rapid ecotoxicty assessment in wastewater treatment.

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