The Application Direction of Sludge Disposal Technology in City Sewage Treatment Plant

By aerobic composting bin type of sewage treatment plant sludge composting, through periodic sampling, research composting process temperature, moisture content, PH value changes and study the changes in compost maturity parameters of the DH. The results show that the compost temperature increased rapidly in the early rise in the first two days when fast to 50 degrees Celsius, in the tenth day decreased to room temperature; moisture content than the original sludge reduced by 40 percent to compost indicators; PH by reaction initial 6.2, and gradually becomes neutral and alkaline 7.8 biased. Experiments show that after aerobic sludge composting in temperature, moisture content, PH value terms have been reached sludge disposal requirements.

Download Full-text

Economic Analysis of Electroplating Discharges to Sewage Treatment Plants

Water Quality Research Journal ◽

10.2166/wqrj.1990.006 ◽

1990 ◽

Vol 25 (1) ◽

pp. 91-108

Author(s):

Norman D. Looker ◽

Edward .A. McBean ◽

Grahame J. Farquhar

Keyword(s):

Economic Analysis ◽

Agricultural Land ◽

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Cost Effective ◽

Sensitivity Analyses ◽

Net Benefit ◽

Sludge Disposal ◽

Plating Plant

Abstract A comparison of costs of implementing an advanced wastewater treatment system for a cadmium plating plant, versus the sludge disposal costs of the sewage treatment plant to which the plating plant is discharging its effluent, is described. An economic analysis spreadsheet approach using Lotus 1-2-3 is employed. A case study application demonstrates for overall society net benefit that it is cost-effective to initiate pretreatment at electroplating facilities which allows a municipal facility to dispose of its sludge on agricultural land rather than be required for landfilling. Sensitivity analyses to market interest rate, sludge production, sludge disposal fees and drag-out rates are explored.

Download Full-text

Simultaneous Pasteurization – Digestion (SPD-Process)

Water Science & Technology ◽

10.2166/wst.1982.0138 ◽

1982 ◽

Vol 14 (6-7) ◽

pp. 739-748

Author(s):

G Kugel

Keyword(s):

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

River Basin Management ◽

The Past ◽

Sludge Disposal ◽

Sludge Recycling ◽

Oil Fuel ◽

Submerged Combustion

As part of the regional sludge disposal system of recycling to land, which is integrated into the Niers river basin management of the Niersverband, FRG, pasteurization is done in combination with the anaerobical stabilisation of sludge in order to ensure a long-term agricultural disposal with respect to hygienic hazards which is in general much less expensive than any other alternative sludge handling and disposal. During the past 15 years of Niersverband activity in liquid sludge recycling pasteurization has been done after digestion, mostly by flash heating along the CANZLER process with steam. Alternative heating by submerged combustion here has been proved reliable after nearly 10 years experience of several installations of this kind for raw sludge pasteurization with oil fuel supply. Submerged combustion heating with digestion gas supply has been running at a medium sized sewage treatment plant (100.000 population equivalents) during the past two years. The pasteurization, which was first done after digestion, was now successfully put in front of the anaerobical stabilisation with sufficient gas yield, organic matter degradation, and stable low concentration of organic acids (CH3 COOH) in the digester at a positive gas energy balance.

Download Full-text

The Working Procedure Design and Industrialization Experiment on Sludge Incineration Generate Electric Power

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.374-377.598 ◽

2011 ◽

Vol 374-377 ◽

pp. 598-601 ◽

Cited By ~ 1

Author(s):

Jian Guang Cheng ◽

Long Qing Shi

Keyword(s):

Electric Power ◽

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Power Station ◽

Sludge Characteristics ◽

Sludge Incineration ◽

Sludge Disposal ◽

Working Procedure ◽

Disposal Problem

The purpose of this paper is to analyze the sludge characteristics of the Qingdao Ni Buwan Sewage Treatment Plant and introduces the sludge disposal technique in recent years and designs an incineration working procedure on power station. The method used in our study is known as directly heat dry-cure incineration technique for generate electric power in Qingdao Jiaonan Power Co., Ltd. We have carried out several sets of experiments to test the validity of incineration generate electric power. The results of the experiment indicate that this incineration program is practicable, resolves the sludge disposal problem in Qingdao Ni Buwan Sewage Treatment Plant and has effect and profit in economic , social and environment.

Download Full-text

The survey on odor emission characteristics in a sewage treatment plant by using passive samplers

Journal of Odor and Indoor Environment ◽

10.15250/joie.2014.13.1.20 ◽

2014 ◽

Vol 13 (1) ◽

pp. 20-27 ◽

Cited By ~ 5

Author(s):

Han-Soo Kim ◽

◽

Suk-Jun Lee ◽

Yong-Jeong Lee ◽

Sun-Tae Kim

Keyword(s):

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Passive Samplers ◽

Emission Characteristics ◽

Odor Emission

Download Full-text

Analysis and balance of phosphorous removal from wastewater at urban wastewater treatment plant

Pollack Periodica ◽

10.1556/606.2020.15.2.13 ◽

2020 ◽

Vol 15 (2) ◽

pp. 142-151

Author(s):

Peter Lukac ◽

Lubos Jurik

Keyword(s):

Wastewater Treatment ◽

Wastewater Treatment Plant ◽

Wastewater Treatment Plants ◽

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Phosphorus Recovery ◽

Anaerobic Sludge ◽

Biological Phosphorus Removal ◽

The Mean

Abstract:Phosphorus is a major substance that is needed especially for agricultural production or for the industry. At the same time it is an important component of wastewater. At present, the waste management priority is recycling and this requirement is also transferred to wastewater treatment plants. Substances in wastewater can be recovered and utilized. In Europe (in Germany and Austria already legally binding), access to phosphorus-containing sewage treatment is changing. This paper dealt with the issue of phosphorus on the sewage treatment plant in Nitra. There are several industrial areas in Nitra where record major producers in phosphorus production in sewage. The new wastewater treatment plant is built as a mechanicalbiological wastewater treatment plant with simultaneous nitrification and denitrification, sludge regeneration, an anaerobic zone for biological phosphorus removal at the beginning of the process and chemical phosphorus precipitation. The sludge management is anaerobic sludge stabilization with heating and mechanical dewatering of stabilized sludge and gas management. The aim of the work was to document the phosphorus balance in all parts of the wastewater treatment plant - from the inflow of raw water to the outflow of purified water and the production of excess sludge. Balancing quantities in the wastewater treatment plant treatment processes provide information where efficient phosphorus recovery could be possible. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. The mean daily value of P tot is approximately 122.3 kg/day of these two sources. There are also two outflows - drainage of cleaned water to the recipient - the river Nitra - 9.9 kg Ptot/day and Ptot content in sewage sludge - about 120.3 kg Ptot/day - total 130.2 kg Ptot/day.

Download Full-text

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

Oceanological and Hydrobiological Studies ◽

10.2478/v10009-007-0049-7 ◽

2008 ◽

Vol 37 (2) ◽

Author(s):

Maciej Walczak

Keyword(s):

Water Quality ◽

Sewage Treatment ◽

Sewage Treatment Plant ◽

Treatment Plant ◽

Sewage Treatment Plants ◽

Plant Operation ◽

Treated Sewage ◽

Microbiological Parameters ◽

Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

Download Full-text