Polish experience with sewage sludge dewatering in reed systems

2003 ◽  
Vol 48 (5) ◽  
pp. 111-117 ◽  
Author(s):  
H. Obarska-Pempkowiak ◽  
A. Tuszyńska ◽  
Z. Sobociński
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Thick Layer ◽  
Biological Properties ◽  
Sludge Dewatering ◽  
Primary Sludge ◽  
Reed Beds ◽  
Polish Experience ◽  
Reed Bed

Macrophyte plants e.g. reed, cattails, bulrush, can be applied to sewage sludge utilisation. One of the first facilities of this type in the Gdansk region (Northern Poland) was established in Darzlubie in 1995 and primary sludge has been utilised in reed beds there. The objective of the undertaken research was evaluating the influence of sewage sludge storage on its chemical and biological properties. A total of 5.5 m thick layer of primary, anaerobically stabilised sludge (moisture 90-96%) was loaded to the reed bed during 6 years of operation. As a consequence of dewatering and biochemical transformation, the sludge layer decreased to 30 cm. Moisture, organic matter, total nitrogen and total phosphorus contents, as well as coli index, Clostridium perfringens index and the number of Ascaris lumbricoides ova were measured. Also the contents of heavy metals (Cu, Pb, Zn, Ni, Cr and Cd) were determined in sludge samples. The study showed that sludge storage in reed beds results in dewatering and partial stabilisation. In the reed lagoons in Swarzewo and Zambrow, dewatering of secondary sludges was investigated. The results of measurements of the quality of sludge and effluent from the reed lagoon in Zambrow are also presented.

Polish experience with sewage sludge utilization in reed beds

2000 ◽  
Vol 41 (1) ◽  
pp. 65-68 ◽  
Author(s):  
W. Zwara ◽  
H. Obarska-Pempkowiak
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Ascaris Lumbricoides ◽  
Wastewater Treatment Plants ◽  
Biological Properties ◽  
Reed Beds ◽  
Polish Experience ◽  
Long Time ◽  
Experimental Facilities ◽  
Reed Bed

The problem of utilization and management of sewage sludge originating from small wastewater treatment plants is still unsolved in Poland. One of the waste-free technologies of sludge utilization is the reed bed method. Two experimental facilities of this type have been operating for four years in the Gdansk Region: a reed bed in Darżlubie and a reed lagoon in Swarzewo. The investigation was aimed at evaluating the influence of the storage on chemical and biological properties of sewage sludge deposited in beds. Tests were carried out in the period of two years. Moisture, organic matter, total nitrogen and total phosphorus contents as well as coli index, Clostridium perfringens index and number of Ascaris lumbricoides eggs analyzes were measured. Analyses of contents of heavy metals Cu, Pb, Ni, Zn, Cr and Cd for sludge samples from Darżlubie were additionally carried out. Tests proved that the utilization of sludge in reed beds allows using the end product as a fertilizer in agriculture. The most important problem is increasing of heavy metals content and number of Ascaris lumbricoides per mass of sludge during long time storage.

Utilization of sewage sludge ashes in the brick and tile industry

1997 ◽  
Vol 36 (11) ◽  
pp. 251-258 ◽  
Author(s):  
Bernd Wiebusch ◽  
Carl Franz Seyfried
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Chemical Composition ◽  
Sewage Sludge ◽  
Treatment Methods ◽  
Sludge Incineration ◽  
Brick And Tile ◽  
The Impact

Several aspects of using ashes from sewage sludge incineration in the brick and tile industry have been examined. After discussing the item of ash production in Germany, the impact of different wastewater treatment methods is described; for instance, the use of precipitation agents containing iron will considerably influence the ash quality. Depending on their respective chemical composition, different ashes have different effects on the ceramic qualities of the bricks made of clay blended with ashes. These effects will be shown in regard to the major ceramic parameters. Similarly, the quality of the ashes also influences the elution behaviour and the mineral fixation of heavy metals.

Reed beds: constructed wetlands for municipal wastewater treatment plant sludge dewatering

2001 ◽  
Vol 44 (11-12) ◽  
pp. 393-398 ◽  
Author(s):  
J.S. Begg ◽  
R.L. Lavigne ◽  
P.L.M. Veneman
Keyword(s):  
Wastewater Treatment ◽  
Total Phosphorus ◽  
Biochemical Oxygen Demand ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Total Suspended Solids ◽  
Sludge Dewatering ◽  
Sludge Treatment ◽  
Reed Beds ◽  
Reed Bed

Reed beds are an alternative technology wastewater treatment system that mimic the biogeochemical processes inherent in natural wetlands. The purpose of this project was to determine the effectiveness of a reed bed sludge treatment system (RBSTS) in southern New England after a six-year period of operation by examining the concentrations of selected metals in the reed bed sludge biomass and by determining the fate of solids and selected nutrients. Parameters assessed in both the reed bed influent and effluent: total suspended solids, biochemical oxygen demand, nitrate-nitrogen and total phosphorus. In addition, the following metals were studied in the reed bed influent, effluent and Phragmites plant tissue and the sludge core biomass: boron, cadmium, chromium, copper, iron, lead, manganese, molybdenum, nickel, and zinc. The removal efficiencies for sludge dewatering, total suspended solids and biochemical oxygen demand were all over 90%. Nitrate and total phosphorus removal rates were 90% and 80% respectively. Overall metals removal efficient was 87%. Copper was the only metal in the sludge biomass that exceeded the standards set by the Massachusetts Department of Environmental Protection for land disposal of sludge. The highest metal concentrations, for the most part, tended to be in the lower tier of the sludge profile. The exception was boron, which was more concentrated in the middle tier of the sludge profile. The data and results presented in this paper support the notion that reed bed sludge treatment systems and the use of reed beds provide an efficient and cost effective alternative for municipal sludge treatment.

scholarly journals Organic matter and heavy metals content modeling in sewage sludge treated with reed bed system

2017 ◽  
Vol 22 ◽  
pp. 00021 ◽  
Author(s):  
Dariusz Boruszko ◽  
Wojciech Dąbrowski ◽  
Paweł Malinowski
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Sewage Sludge ◽  
Reed Bed ◽  
Content Modeling

Potential fertilizing properties of sewage sludge treated in the sludge treatment reed beds (STRB)

2013 ◽  
Vol 68 (6) ◽  
pp. 1412-1418 ◽  
Author(s):  
Katarzyna Kołecka ◽  
Hanna Obarska-Pempkowiak
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Sewage Sludge ◽  
Municipal Wastewater ◽  
Residual Fraction ◽  
Municipal Wastewater Treatment ◽  
High Concentration ◽  
Nitrogen And Phosphorus ◽  
Sludge Treatment ◽  
Reed Beds

In previous research the fertilizer value of sludge from reed beds was evaluated based on the sampling sludge on different depths from four Danish sludge treatment reed beds (STRB) after long periods of stabilization. The dewatering efficiency of sewage sludge in the STRB is comparable to mechanical dewatering. The long-term stabilization of sewage sludge progressively decreases the concentration of organic matter due to the process of humification. The aim of the work was to determine the changes of organic matter concentration, nutrients concentrations as well as speciation of selected heavy metals (Cd, Pb, Ni, Cr, Cu and Zn) in vertical profile of the sewage sludge stabilized in the STRB for 7–15 years. The analyzed sewage sludge was collected from the STRB treating sludge from four municipal wastewater treatment plants located in Denmark serving from 9,000 to 40,000 person equivalent. Analyzed heavy metals (except for Zn) were mostly bound with the most stable – residual – fraction. The most stable metals were Pb and Cr, where the share of the residual fraction exceeded 80.0%. The most mobile metal was Zn, where the share of the mobile fractions (calculated as the sum of I, II and III fractions) exceeded 85.0%. The high concentration of nitrogen and phosphorus is the decisive factor in the high valuation of sludge stabilized in the STRB as fertilizer.

Distribution and speciation of heavy metals in two different sludge composite conditioning and deep dewatering processes

RSC Advances ◽  
2015 ◽  
Vol 5 (124) ◽  
pp. 102332-102339 ◽  
Author(s):  
Chao Li ◽  
Shinan Zhang ◽  
Jiakuan Yang ◽  
Yafei Shi ◽  
Wenbo Yu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Red Mud ◽  
Pilot Scale ◽  
Sludge Dewatering

Pilot-scale sewage sludge dewatering experiments were conducted using two composite conditioners: FeCl3 + lime (Fe-lime) and Fenton's reagents + red mud (Fenton-RM).

Evaluation of sludge dewatering reed beds: a niche for small systems

1997 ◽  
Vol 35 (6) ◽  
pp. 21-28 ◽  
Author(s):  
B. J. Kim ◽  
E. D. Smith
Keyword(s):  
Wastewater Treatment Plants ◽  
The United States ◽  
Land Application ◽  
Sludge Dewatering ◽  
Reed Beds ◽  
Construction Engineering ◽  
Engineering Research ◽  
Solids Loading ◽  
Reed Bed ◽  
Fort Campbell

The U.S. Army Construction Engineering Research Laboratories (USACERL) has been developing and adopting improved sludge dewatering systems for U.S. Army wastewater treatment plants. USACERL selected reed beds as the best alternative for future Army sludge dewatering systems based on the system's economical and technical feasibility and on a demonstration of the technology at Fort Campbell, KY, USA. This paper compares the Army's options for upgrading Fort Campbell's sand-drying beds, analyzes costs, discusses sludge hydraulic and solids loading rate data from existing reed bed operations in the United States, and presents 5 years' operational data from Fort Campbell. Options considered for comparison included: land application of sludge at training fields, wedgewater beds, vacuum-assisted beds, wedgewater beds and composting, mechanical dewatering systems, and a “no change” option in which sand-drying beds would have been retained. In conclusion, this paper summarizes advantages and limitations of reed bed sludge dewatering. Advantages of reed beds may include: low investment especially when sand-drying beds are converted to reed beds, savings of sludge removal costs, and the benefits inherent to using a simple and economical technology. Limitations may include: large land requirements and little scientific understanding of this empirical technology. The challenge will be to further develop appropriate disposal technologies to meet new U.S. sludge regulations.

scholarly journals Contribution of organic bulking materials on chemical quality of sewage sludge vermicompost

2011 ◽  
Vol 35 (6) ◽  
pp. 1077-1084 ◽  
Author(s):  
Kazem Hashemimajd ◽  
Shahzad Jamaati-e-Somarin
Keyword(s):  
Heavy Metals ◽  
Electrical Conductivity ◽  
Sewage Sludge ◽  
Chemical Properties ◽  
Low Ph ◽  
Chemical Quality ◽  
Ni Content ◽  
Mixing Proportion ◽  
Dried Sludge

Vermicomposting is at suitable methods for stabilization and converting of sewage sludge into useful products. To investigate the effects of bulking material on vermicompost quality, an experiment was conducted in a factorial design with three replications. In this experiment, the final dried sludge in lagoons was mixed with bulking materials (woodchips, three leaves, and wheat straw) in four mixing proportion with swage sludge (0, 15, 30 and 45%, V/V). Chemical properties of bulking materials, sewage sludge, and produced vermicomposts were determined. Vermicomposts had relatively low pH and electrical conductivity (EC). The nutrients content of vermicompost, especially N, P, Fe, and Zn, were high. These properties showed its suitable quality for use in agriculture. Heavy metals concentrations of vermicomposts, except Zn, were lower than recommended values by EPA. Mixing of Bulking materials with sewage sludge decreased pH, N, Pb, Co, and Cd, but increased Ca, Mg, Fe, Cu, Mn, Zn, and Ni content of produced vermicomposts. In most cases, the concentrations of nutrients were higher in 30% mixing proportion. Therefore, 30% (v/v) mixing of bulking material with sewage sludge is recommended for vermicompost production.

Агрономическая эффективность промышленной (голландской) технологии возделывания картофеля

2018 ◽  
Author(s):  
C. Coy ◽  
A.V. Shuravilin ◽  
O.A. Zakharova
Keyword(s):  
Heavy Metals ◽  
Regression Analysis ◽  
Positive Response ◽  
Growth Yield ◽  
Correlation And Regression Analysis ◽  
Yield And Quality ◽  
Quality Of Products ◽  
High Degree ◽  
The Impact

Приведены результаты исследований по изучению влияния промышленной технологии возделывания картофеля на развитие, урожайность и качество продукции. Выявлена положительная реакция растений на подкормку K2SO4 в период посадки. Корреляционно-регрессионный анализ урожайности и качества клубней выявил высокую степень достоверности результатов опыта. Содержание нитратов и тяжелых металлов в клубнях было ниже допустимых величин.The results of studies on the impact of industrial technology of potato cultivation on growth, yield and quality of products. There was a positive response of plants to fertilizer K2SO4 in the period of planting. Correlation and regression analysis of yield and quality of tubers revealed a high degree of reliability of the results of experience. The contents of nitrates and heavy metals in tubers was below the permissible values.

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