scholarly journals Analysis of Adapted Sewage Sludge Treatment and Disposal Routes in Bujumbura, Burundi

OALib ◽  
2021 ◽  
Vol 08 (04) ◽  
pp. 1-23
Author(s):  
Aaron Bizimana ◽  
Bing Wu ◽  
Aicha Abdallah Idriss
Keyword(s):  
Sewage Sludge ◽  
Sludge Treatment ◽  
Sewage Sludge Treatment ◽  
Treatment And Disposal

Treatment and Quality of Sewage Sludge in Germany - Results of a Survey

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
A. Meda ◽  
C. Schaum ◽  
M. Wagner ◽  
P. Cornel ◽  
A. Durth
Keyword(s):  
Sewage Sludge ◽  
Treatment Process ◽  
Wastewater Treatment Plants ◽  
Current Status ◽  
Sludge Treatment ◽  
Sewage Sludge Treatment ◽  
Treatment And Disposal ◽  
German Association ◽  
Entire Treatment

TIn 2004, the German Association for Wastewater, Water and Waste (DWA) carried out a survey about the current status of sewage sludge treatment and disposal in Germany. The study covered about one third of the wastewater treatment plants and about two thirds of the entire treatment capacity (expressed in population equivalents) in Germany. This provides an up-to-date and representative database. The paper presents the most important results regarding sludge treatment, process engineering, current disposal paths and sewage sludge quality.

Dilemma of Sewage Sludge Treatment and Disposal in China

2015 ◽  
Vol 49 (8) ◽  
pp. 4781-4782 ◽  
Author(s):  
Leiyu Feng ◽  
Jingyang Luo ◽  
Yinguang Chen
Keyword(s):  
Sewage Sludge ◽  
Sludge Treatment ◽  
Sewage Sludge Treatment ◽  
Treatment And Disposal

Present Situation on Resources Utilization of Sewage Sludge and its Potential Problems in China

2013 ◽  
Vol 448-453 ◽  
pp. 756-760
Author(s):  
Jin Ping Li ◽  
Yun Jiao Hu ◽  
Jin Hua Gan
Keyword(s):  
Sewage Sludge ◽  
New Technologies ◽  
Environmental Concern ◽  
Present Situation ◽  
Sludge Treatment ◽  
Existing Problems ◽  
Advantages And Disadvantages ◽  
Secondary Pollution ◽  
Sewage Sludge Treatment ◽  
Treatment And Disposal

Sewage sludge treatment and disposal has become a hot issue of current environmental concern, not only its effect will cause secondary pollution to the environment, more importantly, a large quantity of sludge is produced and growth rapidly, acceptable urban area is limited. So its become an important issue need to be solved by us urgently. This article present the current domestic sewage sludge treatment and disposal methods respectively, elaborate the ways for utility, explain the practical advantages and disadvantages of each of these approaches and analyze the existing problems. At the same time, a number of resource utilization of new technologies was prospected.

scholarly journals An environmental LCA of alternative scenarios of urban sewage sludge treatment and disposal

2007 ◽  
Vol 11 (3) ◽  
pp. 153-164 ◽  
Author(s):  
Mario Tarantini ◽  
Patrizia Buttol ◽  
Lorenzo Maiorino
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Sludge Management ◽  
Sludge Treatment ◽  
Urban Sewage ◽  
Sewage Sludge Treatment ◽  
Urban Sewage Sludge ◽  
Treatment And Disposal

The majority of pollutants that affect wastewater are concentrated by treatment processes in sludge; it is therefore critical to have a suitable evaluation methodology of sludge management options to analyze if pollution is redirected from water to other media, such as air and soil. Life cycle assessment is one of the most widely known and internationally accepted methodologies to compare environmental impacts of processes and systems and to evaluate their sustainability in the entire life cycle. In this study the methodology was applied to assess and compare three scenarios of urban sewage sludge treatment and disposal: sludge anaerobic digestion followed by dedicated incineration, sludge incineration without previous digestion, and sludge anaerobic digestion followed by composting. The potential benefits of spreading the compost to soil were not included in the system boundaries even if, due to its nutrients contents and soil improving features, compost could partially replace the use of commercial products. The study was aimed at finding out the environmental critical points of the treatment alternatives selected and at providing a technical and scientific contribution for further debates with national and local authorities on the environmental optimization of sewage sludge management. Life cycle assessment results confirmed the major contribution of electricity and methane consumption on several environmental impact categories. Incineration contributes more than sludge composting to almost all categories, although the heavy metals content of urban wastewater sludge raises substantial concerns when composted sludge is spread to soil. In this paper the models adopted, the hypotheses assumed and the main findings of the study are presented and discussed. .

Study on Application of BOT model in Sewage Sludge Treatment and disposal of China

2010 ◽  
Vol 5 (2) ◽  
Author(s):  
Xin Tian ◽  
Miao Chang
Keyword(s):  
Sewage Sludge ◽  
Current Situation ◽  
Sludge Treatment ◽  
Sewage Sludge Treatment ◽  
Treatment And Disposal ◽  
Operational Modes ◽  
Sludge Production

Sewage sludge treatment and disposal is becoming an essential issue in China. By analyzing current situation and problems in sludge treatment and disposal sector, this paper presented the feasibility of BOT model in sludge treatment and disposal facilities construction, and further established a specific BOT framework for sewage sludge treatment and disposal. This study identified two different BOT operational modes according to the sewage sludge production status in China. Based on summarizing the current challenges in China's sludge treatment and disposal BOT projects, suggestions were proposed.

Comparison of sewage sludge treatment systems for regions with hot climate

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
Petia Mijaylova Nacheva ◽  
G. Moeller-Chávez ◽  
E. Ramírez-Camperos ◽  
L. Cardoso-Vigueros
Keyword(s):  
Sewage Sludge ◽  
Alkaline Treatment ◽  
Sludge Treatment ◽  
Tropical Regions ◽  
Aeration Time ◽  
Sludge Stabilization ◽  
Hot Climate ◽  
Aerobic Stabilization ◽  
Sewage Sludge Treatment ◽  
High Pathogenic

The tropical regions have specific problems associated with high pathogenic density in the sewage sludge. The aim of this study was to select an adequate sludge stabilization and valorization system comparing the performance of four technologies: anaerobic stabilization without heating, aerobic stabilization, alkaline treatment with lime and aerobic composting. The study was performed in a pilot plant which was built and operated during six months. The main problem for the beneficial use of the sludge was its pathogenicity. All the systems allowed obtaining stabilized products which met the bacteriological criteria for some kind of use. The compost and the alkalinized sludge were bacteriologically safe for use without restrictions in accordance with the Mexican regulations. The accomplishment of the parasitological criteria for use was however impossible with the anaerobic and with the aerobic systems. The compost obtained at 55-60°C with 25d aeration time and the alkaline sludge fulfill the criteria established by for forest and agriculture use and for soil conditioning. The composting could reach the requirements for unrestricted use when operated at temperatures 65-70°C during 45 days which makes it the most adequate sludge treatment system for hot climate regions.

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