Incorporation of heavy metals by the mud snail, Cipangopaludina chinensis malleata Reeve, in submerged paddy soil treated with composted sewage sludge

1987 ◽  
Vol 5 (2) ◽  
Author(s):  
Yasushi Kurihara ◽  
Takao Suzuki ◽  
Kiyoshi Moriyama
1987 ◽  
Vol 19 (12) ◽  
pp. 281-286 ◽  
Author(s):  
Y. Kurihara ◽  
T. Suzuki

The effects of the application of reed-sewage sludge compost on the heavy metal incorporation and the growth of young snails born from the adult mud snails, Cipanqopaludina chinensis malleata REEVE, put into submerged paddy soil were investigated. The biomass and growth of the snails in paddy soil with compost were superior to those in soil without compost. The Zn and Cu concentrations in the flesh portion of snails were extremely high as compared with those in the paddy soil surrounding the snails. This may be because snails ingest sewage sludge which is a main organic component of the composts and sewage sludge usually contains large amounts of Zn and Cu, suggesting that this type of snail may be useful in eliminating sewage sludge and Zn and Cu in paddy soil when composted sewage sludge has been applied.


Irriga ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 1-14
Author(s):  
Dávilla Alessandra Da Silva Alves ◽  
Isabela Seixo De Brito Louzada ◽  
Márcio Henrique Lanza ◽  
Maria Márcia Pereira Sartori ◽  
Hélio Grassi Filho

USE OF EFFLUENTS AND COMPOSTED SEWAGE SLUDGE ON THE BIOAVAILABILITY OF HEAVY METALS IN A TROPICAL SOIL     DAVILLA ALESSANDRA DA SILVA ALVES1; ISABELA SEIXO DE BRITO LOUZADA1; MARCIO HENRIQUE LANZA1; MARIA MARCIA PEREIRA SARTORI2 E HELIO GRASSI FILHO1   1 UNESP - Universidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agronômicas (FCA), Departamento de Solos e Recursos Ambientais. Rua José Barbosa de Barros, 1780, CEP 18610-307, Botucatu, SP, Brasil. E-mail: [email protected], [email protected], [email protected], [email protected]; 2 UNESP - Universidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Agronômicas (FCA), Departamento de Produção e Melhoramento vegetal.  Rua José Barbosa de Barros, 1780, CEP 18610-307, Botucatu, SP, Brasil. E-mail: [email protected].     ABSTRACT   The objective of this study was to evaluate the impacts of irrigation with treated effluent of domestic origin (EET) and different doses of composted sewage sludge (CSS) on soil chemical attributes and heavy metals bioavailability after five years of application. The experimental design was completely randomized, in an arrangement of subdivided plots, with ten replications. The plots contain two types of water for irrigation (EET - treated domestic  effluent and AP- potable water)  and in subplots doses of organic compound (CSS - 50, 100, 150, 200 and 250%), whose fertilizer quantities were based on the nitrogen fertilization required for the cultures, as reference. Results showed that levels of heavy metals As, Ba, Cd, Cr, Cu, Hg, Pb, Ni, Se and Zn did not exceed the limits and the maximum permissible content in the soil. Fertilization with composted sewage sludge associated with effluent irrigation positively impacted soil chemical quality in organic matter content, pH, bases sum (SB), base saturation (V%) and CEC. Responses obtained in this study showed a direct relationship between the type of water for irrigation and doses of compound in all evaluated parameters.   Keywords: reuse, wastewater, biosolids, sustainability.     ALVES, D. A. S.1; LOUZADA, I. S. B.1; LANZA, M. H.1; SARTORI, M. M. P.2; GRASSI FILHO, H.1 UTILIZAÇÃO DE EFLUENTE E LODO DE ESGOTO COMPOSTADO NA BIODISPONIBILIDADE DE METAIS PESADOS EM UM SOLO TROPICAL     RESUMO   Objetivou-se avaliar os impactos da irrigação com o efluente de esgoto tratado (EET) e diferentes doses de lodo de esgoto compostado (CSS) nos atributos químicos do solo e na biodisponibilidade de metais pesados após cinco anos de aplicação. O delineamento experimental foi inteiramente casualizado, em arranjo de parcelas subdivididas, com dez repetições. As parcelas contêm dois tipos de água para irrigação (EET - efluente doméstico tratado e AP - água potável) e nas subparcelas as doses do composto orgânico (CSS - 50, 100, 150, 200 e 250%), cujas quantidades do fertilizante foram baseadas na exigência da adubação nitrogenada para as culturas, como referência. Os resultados mostraram que os teores de metais pesados: As, Ba, Cd, Cr, Cu, Hg, Pb, Ni, Se e Zn não ultrapassaram os limites e o teor máximo permissível no solo. A adubação com lodo de esgoto compostado associado à irrigação do efluente impactou positivamente a qualidade química do solo (teor de matéria orgânica), soma base (SB), saturação por bases (V%) e CTC. As respostas obtidas neste estudo mostraram que houve relação direta entre o tipo de água para irrigação com as doses do composto sobre todos os parâmetros avaliados.   Palavras-chave: reuso, água residuária, biossólido, sustentabilidade.


2013 ◽  
Vol 295-298 ◽  
pp. 418-421
Author(s):  
Hai Xia Zhang ◽  
Takayuki Shimaoka

In order to study the effect of organic matter on the heavy metals leachability from municipal solid waste incineration (MSWI) bottom ash. In the project, the composted sewage sludge (CS) rich in organic matter was mixed with MSWI bottom ash in a certain proportion. e exudation test, determination of the leaching liquid pH, dissolved organic carbon and humus concentration, and the concentration of heavy metals. And the combination of CS and BA in organic compounds and metal content, calculate metal leaching rate. According to the experimental results, analysis of dissolved organic matter and humic acid concentrations and Cu and Cr leaching concentration, showed that when CS mixture ratio of 20%, organic matter and humic substances concentration and Cu and Cr leaching concentrations are highly linear correlation.


1986 ◽  
Vol 66 (4) ◽  
pp. 763-765 ◽  
Author(s):  
STANFORD L. TACKETT ◽  
ELLEN R. WINTERS ◽  
MICHAEL J. PUZ

The relative short-term leaching rates of the metals Cd, Cu, Fe, Pb and Zn from composted sewage sludge was determined over the pH range of 2.5–7.0 at 0.5 pH unit intervals. Only Zn and Cd leached significantly faster as the pH was lowered, with both showing the greatest solubility increase over the pH range of 5.5–6.0. Key words: Metal leaching, heavy metals, sewage sludge, soil pH


1987 ◽  
Vol 5 (3) ◽  
pp. 107-111
Author(s):  
A. Falahi-Ardakani ◽  
J.C. Bouwkamp ◽  
F.R. Gouin ◽  
R.L. Chaney

Six vegetable species, broccoli, cabbage, lettuce, eggplant, pepper, and tomato plants were grown for 8 wks on a medium of composted sewage sludge (compost), perlite, and peat (equal parts by volume). P, Ca, and Mg were adequate for the growing period, but accumulation of N and K did not increase after the 6th wk after transplanting. Cabbage and broccoli accumulated greater amounts of N and K from the medium and could be successfully grown in the medium without supplemental fertilization. Zn and Cd, potentially hazardous heavy metals present in compost, did not reach excessive levels for either plant nutrition or human consumption.


1982 ◽  
Vol 11 (2) ◽  
pp. 182-186 ◽  
Author(s):  
W. E. Emmerich ◽  
L. J. Lund ◽  
A. L. Page ◽  
A. C. Chang

Sign in / Sign up

Export Citation Format

Share Document