Removal of Heavy Metals and Sewage Sludge Using the Mud Snail, Cipangopaludina chinensis malle at a REEVE, in Paddy Fields as Artificial Wetlands

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.

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

Biology and Fertility of Soils ◽

10.1007/bf00257641 ◽

1987 ◽

Vol 5 (2) ◽

Cited By ~ 4

Author(s):

Yasushi Kurihara ◽

Takao Suzuki ◽

Kiyoshi Moriyama

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Paddy Soil ◽

Mud Snail ◽

Composted Sewage Sludge

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Growth Response and Mineral Uptake of Vegetable Transplants Grown in a Composted Sewage Sludge Amended Medium.

Journal of Environmental Horticulture ◽

10.24266/0738-2898-5.3.107 ◽

1987 ◽

Vol 5 (3) ◽

pp. 107-111

Author(s):

A. Falahi-Ardakani ◽

J.C. Bouwkamp ◽

F.R. Gouin ◽

R.L. Chaney

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Plant Nutrition ◽

Growth Response ◽

Human Consumption ◽

Mineral Uptake ◽

Tomato Plants ◽

Sludge Compost ◽

Growing Period ◽

Composted Sewage Sludge

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.

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Removal of heavy metals from a metaliferous water solution by Typha latifolia plants and sewage sludge compost

Chemosphere ◽

10.1016/s0045-6535(03)00537-x ◽

2003 ◽

Vol 53 (5) ◽

pp. 487-494 ◽

Cited By ~ 34

Author(s):

T. Manios ◽

E.I. Stentiford ◽

P. Millner

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Water Solution ◽

Typha Latifolia ◽

Sludge Compost ◽

Sewage Sludge Compost ◽

Removal Of Heavy Metals

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Removal of Heavy Metals from Wastewater Using Sewage Sludge Ash (SSA) as Adsorbent

SSRN Electronic Journal ◽

10.2139/ssrn.3164094 ◽

2017 ◽

Author(s):

Safaa Ragheb

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Sewage Sludge Ash ◽

Removal Of Heavy Metals ◽

Sludge Ash

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PHYSICAL-CHEMICAL CHARACTERIZATION OF SOILS TREATED WITH SEWAGE SLUDGE COMPOST

Mokslas - Lietuvos ateitis ◽

10.3846/mla.2010.097 ◽

2010 ◽

Vol 2 (5) ◽

pp. 87-92

Author(s):

Milda Radžiūtė ◽

Audronė Matusevičiūtė

Keyword(s):

Heavy Metals ◽

Water Treatment ◽

Sewage Sludge ◽

Organic Waste ◽

Organic Fertilizer ◽

Chemical Characterization ◽

Waste Dump ◽

Sludge Compost ◽

Sewage Sludge Compost

Sewage dump is the main organic waste component accumulating in water treatment companies, and therefore the utilization of dump remains a burning issue. Fertilization is the most popular and cheapest way of using sewage dump a part of which is intended for agriculture in most European countries for composting purposes. Sewage dump or its compost are suitable for fertilizing the upper layers of the soil in cases the concentration of heavy metals is not greater than sanitarian standards can tolerate. The examinations were carried out using different waste dump rates from Vilnius water treatment facility in willow (Salix viminalis) grown cultivated fields. The analysis of the soil was executed after one and two years following the fertilization process. The obtained results indicate that waste dump is a valuable organic fertilizer which contains small amounts of heavy metals. Separate heavy metals migrate from sewage sludge compost to plants differently. It was noted that the concentration of heavy metals in willows was greater (except for Pb and Cd) than that in the soil.

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Stabilization of heavy metals in sewage sludge composting process

Water Science & Technology ◽

10.2166/wst.2001.0591 ◽

2001 ◽

Vol 44 (10) ◽

pp. 95-100 ◽

Cited By ~ 10

Author(s):

K.-Y. Chiang ◽

S.-D. Yoi ◽

H.N. Lin ◽

K.-S. Wang

Keyword(s):

Heavy Metals ◽

Sewage Sludge ◽

Total Concentration ◽

Physicochemical Characteristics ◽

Limit Values ◽

Sludge Compost ◽

Composting Process ◽

Agricultural Applications ◽

Maturation Rate ◽

Sludge Composting

This study investigated the stabilization of heavy metals in a sewage sludge composting process using kaoline addition. The results indicate that the temperature increased rapidly to the thermophilic phase (>55°C) at day 1. The additives enhanced the rate of biodegradation and microbial activity during the co-composting process. The changes in pH (ranging from 8 to 8.5) and electrical conductivity (EC) (≤3 mS/cm) were in compliance with the best conditions during the co-composting process. The C/N ratio was determined in each co-compost sample as an indicator of the co-compost maturity. From the end product of the co-compost experiment, changes in the ratios indicate that the additives promote the co-compost maturation rate. Based on the physicochemical characteristics of the co-compost, the potential use for sewage sludge resource recovery as manure is suggested. The total concentrations of Pb, Cd, Cr, Cu, and Zn in the co-compost product were far below the limit values for agricultural use. The leachability of Pb, Cu, and Cr decreased with increasing co-composting time. That is, the kaoline additive has an inhibitory capacity for leaching heavy metals. The Cd concentrations in the sludge compost were below the detection limits. Because the total concentration of Zn was high in the sludge compost and most soluble Zn was leachable, the leachability of Zn ranged from 25% to 29%. As a result of the physicochemical characteristics and heavy metal stabilization, the selected additive was shown to improve the sewage sludge compost quality and provide information for agricultural applications.

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