Effects of biostimulation by sugarcane bagasse and coffee grounds on sewage sludges, focusing agricultural use: Microbial characterization, respirometric assessment and toxicity reduction

ABSTRACT: The biomass pyrolysis process may be an alternative for the agricultural use of sewage sludge. This study aimed to evaluate the use of of biochars from mixture of sewage sludge and sugarcane bagasse (BB, 1:1 relationship sewage sludge and sugarcane bagasse) on sugar beet (Beta vulgaris L.) production and nutrition. A greenhouse experiment was conducted with five application rates of BB: 0, 2.5, 5, 7.5, and 10% (v/v), and two additional treatments, biochar from sewage sludge (BS, application rate 5% (v/v)) and conventional treatment (CV) that received lime and mineral fertilizer. The treated soils were incubated for 45 days, after which, seedlings were cultivated for 55 days. Biochar produce from sewage sludge and sugarcane bagasse is an alternative technology to reduce the potential for contamination of sewage sludge and to incorporate more stable carbon forms in the soil. Although, biochar has increased soil fertility, fine roots and nutrient uptake efficiency by sugar beet plants, total dry matter yield was significantly lower than that obtained in conventional treatment.

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COFFEE SILVERSKIN AND EXPIRED COFFEE POWDER USED AS ORGANIC FERTILIZERS

Coffee Science ◽

10.25186/cs.v14i1.1514 ◽

2019 ◽

Vol 14 (1) ◽

pp. 24

Author(s):

Ruan Carnier ◽

Ronaldo Severiano Berton ◽

Aline Renee Coscione ◽

Adriana Marlene Moreno Pires ◽

Jessica Zuanazzi Fioritti Corbo

Keyword(s):

Chemical Characterization ◽

Nitrogen Sources ◽

Efficiency Index ◽

Organic Wastes ◽

Organic Fertilizers ◽

Coffee Silverskin ◽

Coffee Grounds ◽

Wide Range ◽

Coffee Powder ◽

Agricultural Use

The coffee industry produces a wide range of organic wastes, some in large amounts, and most of them do not have a well-defined final disposal. The agricultural use of these wastes can be based on the recycling of nitrogen, but their chemical characterization and evaluation with soil under controlled conditions are mandatory. The aim of this work was to evaluate the use of coffee silverskin and expired coffee grounds as organic fertilizers. The wastes were chemically characterized according to CONAMA’S resolution No. 375 and passed through Brazil’s Agriculture Ministry regulation for organic fertilizers and soil conditioners. A greenhouse experiment with Rhodic Ferralsol soil and maize was performed to obtain the agronomic efficiency index (AEI) for nitrogen. The treatments were control (without residue), ammonium nitrate as a mineral reference, and both organic wastes, at a dose of 450 mg of Kjeldahl nitrogen per pot, in triplicate. The data obtained in the characterization were favorable to the wastes as nitrogen sources for agriculture. However, the AEIs obtained were low (0.5 and 7.9% for the expired coffee grounds and the coffee silverskin, respectively) compared to that of the mineral reference (92%). Based on these results, the use of coffee silverskin and expired grounds as organic fertilizers is not recommended but can improve soil attributes and serve as a complementary source of nitrogen and potash.

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Metals in Sewage Sludge and their Potential Effects in Agriculture

Water Science & Technology ◽

10.2166/wst.1983.0018 ◽

1983 ◽

Vol 15 (1) ◽

pp. 209-225 ◽

Cited By ~ 12

Author(s):

E G Coker ◽

P J Matthews

Keyword(s):

Sewage Sludge ◽

Food Chain ◽

Toxic Metals ◽

Large Body ◽

Potentially Toxic Metals ◽

Sewage Sludges ◽

Agricultural Use ◽

Industrial Sources ◽

Available Information

Metals accumulate in sewage sludges from domestic and industrial sources. Where such sludges are used in agriculture, the metals may contaminate land to such an extent that the quality and yield of crops is affected. Control of the industrial sources of sludge applications will avoid these problems. The paper reviews available information in the chemistry of the most significant potentially toxic metals in soils and their effects on crops including contamination of the food chain ending with man. The paper emphasises the large body of information available but underlines the need for more data if greater certainty is to evolve in the guidelines produced for the agricultural use of sludge and trade effluent control.

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Toxicity reduction of adenovirus mediated thymidine kinase gene therapy for ovarian cancer and subsequent combination with topoisomerase inhibitors: Design of a clinical phase I study

Journal of the Society for Gynecologic Investigation ◽

10.1016/s1071-5576(97)86111-4 ◽

1998 ◽

Vol 5 (1) ◽

pp. 47A-47A ◽

Cited By ~ 1

Author(s):

X TONG ◽

D ENGEHAUSEN ◽

D SHINE ◽

I AGOULNIK ◽

T KIM ◽

...

Keyword(s):

Ovarian Cancer ◽

Gene Therapy ◽

Phase I ◽

Thymidine Kinase ◽

Phase I Study ◽

Thymidine Kinase Gene ◽

Topoisomerase Inhibitors ◽

Kinase Gene ◽

Clinical Phase ◽

Toxicity Reduction

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Transformation of evaluation criteria of lands withdrawn from agricultural turnover due to radioactive contamination

Melioration and Water Management ◽

10.32962/0235-2524-2020-2-23-27 ◽

2020 ◽

pp. 23-27

Author(s):

Olga Merzlova

Keyword(s):

Economic Evaluation ◽

Radioactive Contamination ◽

Chernobyl Accident ◽

Evaluation Criteria ◽

Contaminated Land ◽

Degradation Processes ◽

Agricultural Use ◽

Land Clearance

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. Due to the positive dynamics of the radiation situation, the issue of land return becomes relevant. However, in the period of exclusion of these lands the land clearance degradation processes were developing. The second part of the article is devoted to the issue of economic evaluation of the expediency of land return and the mutual coordination of the results of separate stages of complex ecological and economic evaluation. The research was carried out in Mogilev branch Institute of radiology (Republic of Belarus).

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Transformation of assessment criteria for lands withdrawn from agricultural use due to radioactive contamination

Melioration and Water Management ◽

10.32962/0235-2524-2019-6-24-30 ◽

2020 ◽

Vol 0 (6) ◽

pp. 24-30

Author(s):

Olga Merzlova

Keyword(s):

Economic Evaluation ◽

Radioactive Contamination ◽

Chernobyl Accident ◽

Assessment Criteria ◽

Contaminated Land ◽

Criteria And Indicators ◽

Agricultural Use ◽

Natural Decay

One of the measures to eliminate the consequences of the Chernobyl accident was the exclusion of highly contaminated land from agricultural use. During the natural decay of radionuclides there is a decrease in the activity of 137Cs and 90Sr in the soil. The issue of land return becomes relevant. The article describes the main stages of formation of the system of criteria and indicators of ecological and economic evaluation of the expediency of land return. The first part of the article is devoted to the issue of radiological evalation.

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Modes of agricultural use, productivity and fertility of developed lowland peat soils

Multifunctional adaptive feed production № 23 (71) ◽

10.33814/mak-2020-23-71-108-114 ◽

2020 ◽

Author(s):

Aleksandr Glubokovskih

Keyword(s):

Crop Rotation ◽

Peat Soil ◽

Perennial Grasses ◽

Peat Soils ◽

Fodder Crop ◽

Agrochemical Properties ◽

Agricultural Use ◽

Fodder Crop Rotation

The results of many years of research on the cultivation of crops in fodder crop rotation on dried peat soil are presented. A productive and agroecological assessment of crop rotation with various saturation with perennial grasses is given. The data on the reduction of peat reserves and changes in the agrochemical properties of the soil are presented.

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