scholarly journals Characteristic of wet method of phosphorus recovery from polish sewage sludge ash with nitric acid

2016 ◽  
Vol 14 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Katarzyna Gorazda ◽  
Barbara Tarko ◽  
Zbigniew Wzorek ◽  
Anna K. Nowak ◽  
Joanna Kulczycka ◽  
...  
Keyword(s):  
Nitric Acid ◽  
Sewage Sludge ◽  
Phosphorus Content ◽  
Extraction Efficiency ◽  
Phosphorus Recovery ◽  
Phosphorus Compounds ◽  
Acid Extraction ◽  
Treatment Technology ◽  
Sewage Sludge Ash ◽  
Sludge Ash

AbstractSewage Sludge Ash (SSA) is a concentrated source of phosphorus and can be successfully recycled via a number of different routes. This paper presents research results on phosphorus recovery from differently combusted sewage sludge with the use of nitric acid extraction. Different SSA forms from Polish thermal utilization stations were compared. It was revealed that sewage treatment technology as well as combustion technology influence many physical and chemical parameters of ashes that are crucial for further phosphorus recovery from such waste according to the proposed method. Presented research defines extraction efficiency, characterized extracts composition and verifies the possibility of using SSA as cheaper and alternative sources of phosphorus compounds. Gdynia, Kielce and Kraków SSA have the best properties for the proposed technology of phosphorus recovery with high extraction efficiency greater than 86%. Unsuitable results were obtained for Bydgoszcz, Szczecin Slag and Warszawa SSA. Extraction process for Łódź and Szczecin Dust SSA need to be improved for a higher phosphorus extraction efficiency greater than 80%.Phosphorus content in extracts varies from 1.6 to 103.4 g PO43− per 1 dm3, nitrogen content was 167,4 g per 1 dm3 while the K content reached 0.2 to 2.37 g per 1 dm3. The lowest content of Fe, Ni, Cr, Cd is noted in extracts after phosphorus recovery from Gdynia SSA, where the phosphorus content is also at the highest level.The proposed solution can be considered as waste minimization technology by the rational recycling of phosphorus and could be used in industry to produce fertilizers.

scholarly journals From sewage sludge ash to calcium phosphate fertilizers

2012 ◽  
Vol 14 (3) ◽  
pp. 54-58 ◽  
Author(s):  
Katarzyna Gorazda ◽  
Zygmunt Kowalski ◽  
Zbigniew Wzorek
Keyword(s):  
Sewage Sludge ◽  
Acid Leaching ◽  
Selective Extraction ◽  
Phosphorus Recovery ◽  
Phosphorus Compounds ◽  
Phosphate Fertilizers ◽  
Sewage Sludge Ash ◽  
Hematite Phase ◽  
Mineral Acids ◽  
Sludge Ash

Our work presents the results of the research on the utilization of ashes after sewage sludge combustion comprising phosphorus recovery in the form of useful products. The investigations were divided into three parts: selecting the combustion parameters of sewage sludge, examining ash leaching with mineral acids (nitric and phosphoric) to high phosphorus selectivity assuring a low content of iron and heavy metals in the extracted solutions and precipitation of CaHPO4 .2H2O. Suitable temperature of a sewage sludge combustion enables selective extraction of phosphorus compounds from ash because of hematite phase forming, insoluble in mineral acids. The extracts from phosphoric acid leaching, where the extraction of phosphorus compounds was 96.1%, have very good properties for its further use as the initial solution for CaHPO4 .2H2O with 6% lime milk. The obtained product is characterized by high purity and phosphorus availability compatible even with the feed phosphate standard.

scholarly journals Phosphorus cycle - possibilities for its rebuilding.

1970 ◽  
Vol 60 (4) ◽  
Author(s):  
Katarzyna Gorazda ◽  
Zbigniew Wzorek ◽  
Barbara Tarko ◽  
Anna K Nowak ◽  
Joanna Kulczycka ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Extraction Methods ◽  
Phosphorus Recovery ◽  
Acid Extraction ◽  
Phosphorus Cycle ◽  
Sewage Sludge Ash ◽  
Sludge Incineration ◽  
Phosphorus Form ◽  
Sludge Ash ◽  
The Right

The rebuilding of the phosphorus cycle can be performed with the use of both biotechnology and chemical technology. This paper presents a review of the phosphorus cycle and the different approaches that can be taken to the recovery of phosphorus from phosphate-rich waste. Critical issues in the phosphorus cycle are also discussed. Methods for the recovery of phosphorus form sewage sludge ash are widely explored and divided into two groups: wet extraction methods and thermochemical methods. Laboratory-scale methods are described, as well as proposed industrial technologies, with particular regard to the possibilities for their implementation in Poland. Phosphorus recovery methods from SSA (sewage sludge ash) in our country seems to be promising due to the increasing number of sewage sludge incineration plants, which could easily supply ash to future recovery installations. For the effective recovery of P from sewage sludge ash, it is essential to make the right choice in determining the appropriate method to use with respect to the particular properties of the ash composition available. A patented method of phosphorus recovery by acid extraction methods, developed by Cracow University of Technology, results in an efficiency of 80-96% for phosphorus recovery. 3000 to 4000 tons of phosphorus per year can be recycled and introduced back into the environment, that covers around 7% of the total amount of phosphorus ore imported into Poland between 2008 and 2009.

Modelling thermal phosphorus recovery from sewage sludge ash

Calphad ◽  
2016 ◽  
Vol 55 ◽  
pp. 26-31 ◽  
Author(s):  
Sander Arnout ◽  
Els Nagels
Keyword(s):  
Sewage Sludge ◽  
Phosphorus Recovery ◽  
Sewage Sludge Ash ◽  
Sludge Ash

Development of a novel phosphorus recovery system using incinerated sewage sludge ash (ISSA) and phosphorus-selective adsorbent

2021 ◽  
Vol 120 ◽  
pp. 41-49
Author(s):  
Xiaolong Yu ◽  
Yousuke Nakamura ◽  
Masanari Otsuka ◽  
Daisuke Omori ◽  
Shinsuke Haruta
Keyword(s):  
Sewage Sludge ◽  
Phosphorus Recovery ◽  
Sewage Sludge Ash ◽  
Recovery System ◽  
Selective Adsorbent ◽  
Sludge Ash

Phosphorus recovery from sewage sludge ash through an electrodialytic process

2014 ◽  
Vol 34 (5) ◽  
pp. 886-892 ◽  
Author(s):  
Paula Guedes ◽  
Nazaré Couto ◽  
Lisbeth M. Ottosen ◽  
Alexandra B. Ribeiro
Keyword(s):  
Sewage Sludge ◽  
Phosphorus Recovery ◽  
Sewage Sludge Ash ◽  
Sludge Ash

Development of the Phosphorus Recovery System (PRS) utilizing Ultrasonic Wave in Incinerated Sewage Sludge Ash (ISSA)

2019 ◽  
Vol 36 (02) ◽  
pp. 161-170
Author(s):  
Ye Duk Choi ◽  
Jun Yeon Lee ◽  
Zoo Ho Jang ◽  
Jung Gone Joung ◽  
Kyu Mun Han ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Ultrasonic Wave ◽  
Phosphorus Recovery ◽  
Sewage Sludge Ash ◽  
Recovery System ◽  
Sludge Ash

scholarly journals Glass Fertilizers Obtained Using Sewage Sludge ASH Wastes

2019 ◽  
Vol 70 (11) ◽  
pp. 3824-3829
Author(s):  
Bogdan A. Militaru ◽  
Cosmin Vancea ◽  
Rodica Pode
Keyword(s):  
Sewage Sludge ◽  
Kinetic Study ◽  
Phosphorus Content ◽  
High Iron Content ◽  
Sewage Sludge Ash ◽  
Potential Applicability ◽  
Medium Particle ◽  
Fertilizing Effect ◽  
Sludge Ash ◽  
Plant Length

The sewage sludge ash represents an important waste both in terms of the generated quantities and the phosphorus content. Starting from these premises, the present paper proposes an alternative way to use these ash as vitreous fertilizers. Another waste with potential applicability for this purpose is the sludge from the deep water treatment plants, which has a high iron content, an essential microelement for plants development. The paper addresses two aspects: the kinetic study of the solubilisation process of potassium, phosphorus and iron ions from the obtained fertilizers and their effect on barley plants respectively. The kinetic study using the model of intra particular diffusion revealed the process of ionic solubilisation process in two distinct steps: one slow, speed controlling - diffusion through the glass matrix, and second, faster - diffusion through the medium particle boundary. The fertilizing effect, analysed using specific parameters: germination percent, biomass and plant length, recommends as optimal the composition with the maximum addition of ash.

scholarly journals Phosphorus Recovery from Sewage Sludge Ash Based on Cradle-to-Cradle Approach—Mini-Review

Minerals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 985
Author(s):  
Anna Jama-Rodzeńska ◽  
Józef Sowiński ◽  
Jacek A. Koziel ◽  
Andrzej Białowiec
Keyword(s):  
Sewage Sludge ◽  
Phosphorus Recovery ◽  
Chemical Extraction ◽  
Future Research ◽  
Wastewater Treatment Process ◽  
Sewage Sludge Ash ◽  
Treatment Technologies ◽  
Cradle To Cradle ◽  
Pre Treatment ◽  
Sludge Ash

The wastewater treatment process generates large amounts of P-rich organic waste (sewage sludge (SS)). The direct application of SS in agriculture, being controversial, is gradually being replaced by incineration, leading to the concentration of both P and heavy metals in the solid residual-sewage sludge ash (SSA). The novel closed-loop, cradle-to-cradle (C2C) approach leads to maintaining P production at current levels and counteracts its depletion in the future. The aim of this review is the presentation of the implementation of the C2C approach for P recovery. The paper focuses on steps that comprise P C2C, starting from the SS properties, being a derivative of wastewater type and treatment processes, to SS pre-treatment and finally leading to certified P-fertilizers production from SSA by application thermochemical or wet chemical extraction technologies. Examples of SSA treatment technologies and the final products are provided. It has been summarized that future research should focus on the production of SSA-based fertilizers aligning with the C2C concept and determining its effect on the various agriculture and horticulture crops.

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