scholarly journals Utilization of Sewage Sludge Compost in Horticulture

1993 ◽  
Vol 3 (2) ◽  
pp. 161-163 ◽  
Author(s):  
Francis R. Gouin
Keyword(s):  
Sewage Sludge ◽  
Salt Concentration ◽  
Storage Conditions ◽  
Soluble Salt ◽  
Anaerobic Conditions ◽  
Sludge Compost ◽  
Horticultural Crops ◽  
Size Stability ◽  
Potting Media ◽  
Composted Sewage Sludge

Sewage sludge is being converted to compost by many municipalities. Its use in the production, establishment, and/or maintenance of horticultural crops is dependent on soluble salt concentration, particle size, stability, dewatering procedures, storage conditions, and crop needs. Soluble salt concentration has the greatest effect on the amount of compost that can be used as a soil or potting media amendment. Because composted sewage sludge is rich in plant nutrients, it can supply many of the nutrient needs of plants, depending on the amount used and if the plants are growing in the ground or in containers. However, improper storage of composted sewage sludge can render the product useless due to the accumulation of acetic acid and alcohol that occur under anaerobic conditions.

scholarly journals Manganese Binding by Municipal Waste Composts Used as Potting Media

1991 ◽  
Vol 9 (2) ◽  
pp. 97-100 ◽  
Author(s):  
Timothy K. Broschat
Keyword(s):  
Sewage Sludge ◽  
Municipal Waste ◽  
Binding Potential ◽  
Mn Deficiency ◽  
Sludge Compost ◽  
Deficiency Symptoms ◽  
Potting Media ◽  
The Media ◽  
Mn Content ◽  
Syagrus Romanzoffiana

Abstract Queen palms (Syagrus romanzoffiana (Chamisso) Glassman) grown in several types of sewage sludge compost media developed severe Mn deficiency symptoms. Seventy of the symptoms was correlated with DTPA-extractable Mn levels in the media and with leaf Mn content, but not with total media Mn. Compost media tied up over 70% of Mn added to samples within one hour, versus 62% or less for a pine bark, sedge peat, and sand medium. Analysis of autoclaved media samples suggested that some of the Mn tie up in garbage and yard trash composts is caused by microorganisms, but microorganisms had little effect on the binding potential of sludge and manure composts.

scholarly journals Microbial Degradation of Octamethylcyclotetrasiloxane

1999 ◽  
Vol 65 (5) ◽  
pp. 2276-2278 ◽  
Author(s):  
R. Grümping ◽  
K. Michalke ◽  
A. V. Hirner ◽  
R. Hensel
Keyword(s):  
Molecular Weight ◽  
Sewage Sludge ◽  
Microbial Degradation ◽  
Degradation Product ◽  
Laboratory Experiments ◽  
Low Molecular Weight ◽  
Anaerobic Conditions ◽  
Composted Sewage Sludge ◽  
Control Samples

ABSTRACT The microbial degradation of low-molecular-weight polydimethylsiloxanes was investigated through laboratory experiments. Octamethylcyclotetrasiloxane was found to be biodegraded under anaerobic conditions in composted sewage sludge, as monitored by the occurrence of the main polydimethylsiloxane degradation product, dimethylsilanediol, compared to that found in experiments with sterilized control samples.

scholarly journals Sewage sludge compost as a substrate for croton seedlings production

2018 ◽  
Vol 24 (4) ◽  
pp. 380-386 ◽  
Author(s):  
Marcela Caetano Lopes ◽  
Caroline De Moura D'Andréa Mateus ◽  
Dávilla Alessandra Da Silva Alves ◽  
Armando Reis Tavares ◽  
Luiz Vitor Crepaldi Sanches ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Sugarcane Bagasse ◽  
Organic Fertilizer ◽  
Solution Ph ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Codiaeum Variegatum ◽  
Potting Media ◽  
Eucalyptus Bark ◽  
Organic Compost

The floricultural industry is always searching for new and low-cost materials to use as substrate for crop growth and development. Sewage sludge is an organic solid waste from sewage treatment and it has a good potential to be used as an organic fertilizer and/or substrate conditioner. The research aimed to evaluate the rooting and growth of Codiaeum variegatum ‘Andreanum’ (red variety) and Codiaeum variegatum ‘Punctatum’ (yellow variety) cuttings cultivated in the potting media: PM1 - 100% commercial potting media used as control (CS), PM2 - 100% organic compost of sewage sludge + sugarcane bagasse (SSSB), PM3 - 50% CS + 50% SSSB, PM4 - 100% organic compost of sewage sludge + eucalyptus bark (SSEB) and PM5 - 50% CS + 50% SSEB. After 90 days of experimentation the chemical analysis of the substrate solution (pH, electric conductivity, P, K, Ca, Mg, S, Na, B, Cu, Mn and Zn) and number of shoots, shoot fresh and dry mass, plant cutting fresh and dry masses, root fresh and dry masses, total fresh and dry masses and, length of the largest root were analyzed. Our results showed that sewage sludge compost can be used as a substrate for rooting and growth of croton cuttings when mixed with commercial substrate. The use of the pure sewage sludge compound with sugarcane bagasse or eucalyptus bark prejudiced croton cuttings to root.

scholarly journals Growth Response and Mineral Uptake of Vegetable Transplants Growing in Composted Sewage Sludge Amended Medium.

1987 ◽  
Vol 5 (3) ◽  
pp. 112-115
Author(s):  
A. Falahi-Ardakani ◽  
F.R. Gouin ◽  
J.C. Bouwkamp ◽  
R.L. Chaney
Keyword(s):  
Sewage Sludge ◽  
Growth Medium ◽  
Growth Response ◽  
Peat Moss ◽  
Mineral Uptake ◽  
Sludge Compost ◽  
Sewage Sludge Compost ◽  
Marketable Size ◽  
Composted Sewage Sludge ◽  
Pepper Plants

Six species of vegetable transplants were grown in market packs filled with peat moss, perlite and screened sewage sludge compost (equal parts by vol.). Compost was made from lime-dewatered sludge and woodchips. Seedlings were fertilized at 1, 2, 3 and 4 wks after transplanting in single, split and multiple applications of varying levels of N and K in factorial combinations. Fertilizer applications could be delayed 1 to 2 wks after transplanting without a loss of top growth. Lettuce, broccoli and cabbage plants were grown to marketable size with only N fertilizer. However, eggplants, tomato and pepper plants grew best when fertilized with both N and K. Acceptable levels of P, Ca, Mg, Md, Zn and Fe, as measured in tissues, were provided by the growth medium and tissue Cd levels wete within acceptable limits.

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

1987 ◽  
Vol 19 (12) ◽  
pp. 281-286 ◽  
Author(s):  
Y. Kurihara ◽  
T. Suzuki
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Paddy Soil ◽  
Artificial Wetlands ◽  
Sludge Compost ◽  
Mud Snail ◽  
Removal Of Heavy Metals ◽  
Zn And Cu In ◽  
Metal Incorporation ◽  
Composted Sewage Sludge

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.

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

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.

scholarly journals SEWAGE SLUDGE COMPOST AS A SOIL AMENDMENT FOR HORTICULTURAL CROPS

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 697a-697 ◽  
Author(s):  
Valerie J. Mellano ◽  
Robert F. Bevacqua
Keyword(s):  
Sewage Sludge ◽  
Crop Yields ◽  
Residual Effect ◽  
Crop Growth ◽  
Municipal Sewage ◽  
Municipal Sewage Sludge ◽  
Soluble Salts ◽  
Sludge Compost ◽  
Horticultural Crops ◽  
Dried Sludge

Municipal sewage sludge, previously amended with Eucalyptus tree trimmings and composted, was incorporated to a depth of 30 cm at rates of 0, 12.3 and 24.6 dry MT/ha for a field planting of onion, snapdragon, turf and spinach. In a similar subsequent planting, the sludge compost was incorpoated to a depth of 10 cm. Additional treatments address the residual effect of the material. The results indicated sludge compost incorporated to a depth of 30 cm had no effect on crop yields, but when incorporated to a depth of 10 cm there was a significant increase in yields for all test crops. No buildup of heavy metals, soluble salts or changes in soil pH that would depress crop growth were detected. Two greenhouse experiments employed equivalent rates and the same four crops. Two materials, sludge compost and heat-dried sludge were compared. The former contained composted Eucalyptus tree trimmings. The latter did not. The results showed both materials were equally beneficial to crop growth and the presence of Eucalyptus trimmings did not decrease yields

scholarly journals Growth Response of Photinia and Thuja and Nutrient Concentration in Tissues and Potting Medium as Influenced by Composted Sewage Sludge, Peat, Bark and Sawdust in Potting Media

1985 ◽  
Vol 3 (4) ◽  
pp. 176-180
Author(s):  
R.L. Ticknor ◽  
D.D. Hemphill ◽  
D.J. Flower
Keyword(s):  
Sewage Sludge ◽  
Pore Space ◽  
Peat Moss ◽  
Commercial Media ◽  
Potting Medium ◽  
Initial Ph ◽  
Potting Media ◽  
Photinia X Fraseri ◽  
Water Holding ◽  
Composted Sewage Sludge

Composted sewage sludge was blended with pumice and either bark, peat moss, or sawdust to form 6 potting media. Increasing the proportion of compost in media from 25 to 50% caused increased initial pH, electrical conductivity (EC), and airfilled pore space (AS) in all media, and increased growth of Photinia x fraseri Dress. and Thuja occidentalis L. ‘Pyramidalis.’ Sawdust-containing media had the highest pH, EC, and AS; sphagnum peat-containing media the highest water holding capacity and greatest shrinkage; bark-based media the highest bulk density. Plant growth in compost-based media containing peat or bark was equal to or better than that in two commercial media composed primarily of bark or peat.

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