Phytoremediation of Industrial Sewage Sludge with Eichhornia crassipes, Salvinia molesta and Pistia stratiotes in Batch Fed Free Water Flow Constructed Wetlands

2020 ◽  
Vol 104 (5) ◽  
pp. 627-633 ◽  
Author(s):  
K. A. R. K. Kodituwakku ◽  
Mangala Yatawara
2018 ◽  
Vol 26 (1) ◽  
pp. 797-805 ◽  
Author(s):  
Daniele Cristina Hass Seremeta ◽  
Cleber Pinto da Silva ◽  
Rosimara Zittel ◽  
Sandro Xavier de Campos

2020 ◽  
Vol 6 (2) ◽  
pp. 149-159
Author(s):  
Ummi Suraya

The aim of this research is to identify and to inventory water plants in Hanjalutung Lake,Petuk Ketimpun Village, Jekan Raya District, Palangka Raya City. This research was conducted from December 2017 to January 2018. Sampling was carried out in 3 (three) stations, namely inlet ,middle and outlet. The tool used for aquatic plants 2 x 2 m transect.The results of research aquatic plants found in the waters of Lake Hanjalutung 7 (seven) types namely Kiambang (Salvinia molesta), gerigit/bite (Leersia hexandra), Cat Tail Grass (Utricularia aurea), Para Grass (Cyperus platystylis), Water Hyacinth ( Eichhornia crassipes ), Kiapu (Pistia stratiotes) dan Ketanan (Polygonum sp).


2007 ◽  
Vol 53 (6) ◽  
pp. 659-671 ◽  
Author(s):  
Mohammad Khan Jamali ◽  
Tasneem Gul Kazi ◽  
Mohammad Balal Arain ◽  
Hassan Imran Afridi ◽  
Nusrat Jalbani ◽  
...  

2018 ◽  
Vol 12 (2) ◽  
pp. 112-126
Author(s):  
Robinson Antonio Pitelli ◽  
R.L.C.M. Pitelli ◽  
W.R. Cerveira Filho ◽  
Rinaldo José Da Silva Rocha ◽  
F. Cruz ◽  
...  

As macrófitas aquáticas colonizam o reservatório de Santana desde seu enchimento em 1955 em função da eutrofização da água, especialmente a ingressa pelo Canal de Santa Cecília, bombeada do Rio Paraíba do Sul. A colheita mecânica é o principal método adotado para a retirada destas plantas, visando prevenir interferências no meio ambiente e usos múltiplos da água e do corpo hídrico. Este trabalho foi realizado por três anos com o objetivo da avaliar as composições químicas das principais macrófitas que formam a biomassa retirada pela colheita mecânica e inferir sobre os riscos de sua utilização na recuperação de solos de áreas degradadas. As macrófitas avaliadas foram Salvinia molesta, Eichhornia crassipes, Pistia stratiotes, Enydra sessilis, Polygonum lapathifolium, Eichhornia azurea, Urochloa subquadripara, Panicum rivulare, Egeria densa e Potamogeton pectinatus. Os padrões de concentrações de nutrientes foram diferentes entre plantas marginais, flutuantes e submersas, houve variação sazonal dentro das espécies, os valores foram compatíveis com a literatura e as concentrações de metais pesados foram abaixo das exigências legais para fertilizantes orgânicos. Os resultados sugerem baixo risco ambiental da utilização direta desta biomassa na recuperação de áreas degradadas.


2011 ◽  
Vol 197-198 ◽  
pp. 1000-1004 ◽  
Author(s):  
Jing Yong Liu ◽  
Shui Yu Sun ◽  
Yan Bin Xu ◽  
Li Zheng ◽  
Shao Song Huang

The leaching tests of heavy metals in industrial sewage sludge were carried out under different pH of extractant by the solid waste extraction procedure for leaching toxicity (GB5086.2-1997) of China on the base of the contents and fractions of Zn, Cu, Pb, Cr, Mn and Ni elements. The results showed that the sludge was with higher levels of Mn and Zn, followed by Cu and Ni, while the higher toxicity of Pb and Cr was lower. The fractions of different elements in the sewage sludge had very different forms. The potential migration and biological toxicity were a concern for the active forms of Zn, Mn, Ni, Cr because their active proportions were more than 50%. The pH of extraction solutions had an important impact on the leaching of heavy metals in sewage sludge. The largest concentrations of Zn, Mn, Ni, Cu were appeared when the pH of extractant was about 7, but that of Fe had a greater fluctuation at the same pH. The concentrations of heavy metals had very different at different pH values, which may be related with the process of adsorption/desorption, complexation/dissociation, the dissolution/precipitation/co-precipitation and other chemical reactions in the extractant process.


2013 ◽  
Vol 68 (8) ◽  
pp. 1697-1706
Author(s):  
M. Milczarek ◽  
E. Neczaj ◽  
K. Parkitna

The purpose of this work is to study the characteristics of the co-composting of municipal solid waste (MSW), sewage sludge, grass and sawdust. Differing proportions of biodegradable waste were investigated through changes of temperature, oxygen consumption, organic matters, moisture content, carbon, nitrogen, C/N ratio as well as heavy metals and pathogen microorganisms content. The present study has shown that addition of MSW above 10% had a negative impact on the composting process. The initial C/N of the mixtures with a higher MSW content was below 18. Lower losses of organic matter occurred during composting for the mixture with the highest addition of MSW. Although studies have shown that composting is a good method for the disposal of organic waste additional research is required in order to optimize the organic and nitrogen compounds degradation during the co-composting process. In conclusion, a 1:4:4:1 mixture of MSW:sewage sludge:grass:sawdust is recommended because it can achieve high temperature as well as the highest organic matter degradation and highest N content in the final composting product. The concentration of heavy and light metals in all composts was within the limits of regulation of the Polish Minister of Agriculture and Rural Development.


2015 ◽  
Vol 7 (4) ◽  
pp. 399-406 ◽  
Author(s):  
Julija Pečkytė ◽  
Edita Baltrėnaitė

Biochar can be produced from many various feedstock including biomass residues such as straw, branches, sawdust and other agricultural and forestry waste. One of the alternatives is to obtain biochar from industrial sewage sludge, however, the use of such a product could be limited due to high quantities of heavy metals in the biochar as a product. Total concentration of heavy metals provides only limited information on the behavior of heavy metals, therefore, batch leaching and up-flow percolation leaching tests were applied to study the leaching of heavy metals (Cd, Pb, Cr, Ni, Zn, Cu) from (bio)char produced from two types of sewage sludge: from paper mill and leather industries. Bioanglis gali būti gaminama iš daugelio įvairių pramonės žaliavų, įskaitant biomasės liekanas, pavyzdžiui, šiaudus, šakas, pjuvenas ir kitas žemės ūkio ir miškininkystės atliekas. Viena iš alternatyvų – bioanglį gaminti iš pramonės nuotekų dumblo, tačiau tokį produktą galima naudoti ribotai dėl jame esančio didelio sunkiųjų metalų kiekio. Iš bendrosios sunkiųjų metalų koncentracijos tyrimų galima tik ribotai spręsti apie sunkiųjų metalų pasiskirstymą, todėl buvo taikomi du tyrimai: tyrimas, perkoliuojant atliekas vienakrypte srove, bei dvipakopis partijos (tyrinio) tyrimas siekiant išanalizuoti sunkiųjų metalų (Cd, Pb, Cr, Ni, Zn, Cu) išplovimą iš bioanglies, pagamintos iš dviejų rūšių nuotekų dumblo: popieriaus gamybos ir odos pramonės.


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