Bio-stabilization of soft soil using cattle manure

The objective of the present investigation was to evaluate the physical characteristics of the vermicompost and the quality of the purine of the red Californian (Eisenia foetida) using different substrates of feed for these worms. For this purpose, nine treatments were studied: 75% African palm rachis + 25% cattle manure, 50% African palm rachis + 50% cattle manure, 25% African palm rachis + 75% livestock manure, 50% manure of cattle, 50% of manure of cattle, 25% of manure of cattle, 50% of manure of cattle, 50% of manure of cattle, 50% of rach of coconut + 50% of manure of Livestock, 25% coccus rachis + 75% livestock manure. The substrate made up of 50% of rachis of coconut and 50% of livestock manure can be used in nurseries or nurseries for being the one that registered a value of pH 7.3 plus the closest to the neutral compared to the others, besides this (75% of oil palm rachis and 25% of cattle manure) showed a higher content of humic and fulvic acids (0.87 and 0.45 p / p, respectively), compounds that are important for agriculture by stimulating plant growth, in addition to this reflection 0.06% sulfur content, 4.0 ppm boron, 7.0 ppm copper, 47.5 ppm iron, 6.0 ppm manganese, with a presence of microorganisms of the species Trichoderma, Penicillium, Cladosporium sp. in amounts of 1.91x105 UFC / ml, however in this substrate was obtained between 13.3 and 43.5% less liquid slurry in Comparison with other treatments.

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BIOGAS PRODUCTION BY ANAEROBIC TREATMENT OF WASTE MIXTURE CONSISTING OF CATTLE MANURE AND VEGETABLE REMAINS

Environmental Engineering and Management Journal ◽

10.30638/eemj.2012.108 ◽

2012 ◽

Vol 11 (4) ◽

pp. 849-856 ◽

Cited By ~ 3

Author(s):

Alvydas Zagorskis ◽

Pranas Baltrenas ◽

Antonas Misevicius ◽

Edita Baltrenaite

Keyword(s):

Biogas Production ◽

Anaerobic Treatment ◽

Cattle Manure ◽

Waste Mixture

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PENGARUH KOMPOS SAMPAH KOTA DAN PUPUK KANDANG SAPI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN PAKCOY (BRASSICA RAPA, L. CHINENSIS) PADA ALUVIAL KABUPATEN INDRAMAYU

Gema Wiralodra ◽

10.31943/gemawiralodra.vol9.iss2.349 ◽

2018 ◽

Vol 9 (2) ◽

pp. 153-163

Author(s):

Wiwik Ambarsari ◽

Henly Yuliana

Keyword(s):

Plant Height ◽

Brassica Rapa ◽

Block Design ◽

Cattle Manure ◽

Growth And Yield ◽

Randomized Block Design ◽

Two Factors ◽

Number Of Leaves ◽

Experimental Garden

The study aimed to determine the effect of the combination of city waste compost and cattle manure on the growth and yield of pakcoy plants (Brassica rapa, L. Chinensis) in Aluvial, Indramayu Regency. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Wiralodra University, Indramayu Regency from March to August 2018. This study used Factorial Pattern Randomized Block Design with two factors. The first factor is city waste compost and the second factor is cattle manure with 4 levels: 0%, 3.0%, 6.0%, and 9.0%, repeated twice. The results showed that there was an independent influence between city waste compost and cattle manure on plant height and number of leaves. The best combination to increase the feasibility weight of pakcoy consumption is by giving city waste compost 9.0% (S4) and cattle manure 6.0% (K3).

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Application of geotextiles in strengthening soft soil foundation

Advance in Civil Engineering ◽

10.35534/ace.0101004c ◽

2019 ◽

Vol 1 (1) ◽

pp. 18-22

Author(s):

Yang Xueqing ◽

Zhong Xiang

Keyword(s):

Soft Soil ◽

Soil Foundation ◽

Soft Soil Foundation

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Characterization of an Agent in Aqueous Extracts of Beef Cattle Manure that Inhibits the Germination of Barley Seeds

Journal of Environmental Quality ◽

10.2134/jeq1977.00472425000600020012x ◽

1977 ◽

Vol 6 (2) ◽

pp. 163-164 ◽

Cited By ~ 1

Author(s):

R. G. Bell

Keyword(s):

Beef Cattle ◽

Cattle Manure ◽

Aqueous Extracts

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Trialing wetlands to treat coal mining wastewaters in a low rainfall, high evaporation environment

Water Science & Technology ◽

10.2166/wst.1997.0220 ◽

1997 ◽

Vol 35 (5) ◽

pp. 293-299 ◽

Cited By ~ 1

Author(s):

Wendy R. Tyrrell ◽

David R. Mulligan ◽

Lindsay I. Sly ◽

L. Clive Bell

Keyword(s):

Sulfate Reduction ◽

Coal Mining ◽

Pilot Scale ◽

Cattle Manure ◽

Annual Rainfall ◽

Sulfate Reducing ◽

Black Precipitate ◽

Final Treatment ◽

Reducing Bacteria ◽

Initial Results

The large number of wetlands treating mining wastewaters around the world have mostly been constructed in temperate environments. Wetlands have yet to be proven in low rainfall, high evaporation environments and such conditions are common in many parts of Australia. BHP Australia Coal is researching whether wetlands have potential in central Queensland to treat coal mining wastewaters. In this region, mean annual rainfall is < 650 mm and evaporation > 2 000 mm. A pilot-scale wetland system has been constructed at an open-cut coal mine. The system comprises six treatment cells, each 125 m long and 10 m wide. The system is described in the paper and some initial results presented. Results over the first fourteen months of operation have shown that although pH has not increased enough to enable reuse or release of the water, sulfate reduction has been observed in parts of the system, as shown by the characteristic black precipitate and smell of hydrogen sulfide emanating from the wetlands. These encouraging signs have led to experiments aimed at identifying the factors limiting sulfate reduction. The first experiment, described herein, included four treatments where straw was overlain by soil and the water level varied, being either at the top of the straw, at the top of the soil, or about 5 cm above the soil. The effect of inoculating with sulfate-reducing bacteria was investigated. Two controls were included, one covered and one open, to enable the effect of evaporation to be determined. The final treatment consisted of combined straw/cattle manure overlain with soil. Results showed that sulfate reduction did occur, as demonstrated by pH increases and lowering of sulfate levels. Mean pH of the water was significantly higher after 19 days; in the controls, pH was < 3.3, whereas in the treatments, pH ranged from 5.4 to 6.7. The best improvement in sulfate levels occurred in the straw/cattle manure treatment.

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Strength Performance and Microstructure of Calcium Sulfoaluminate Cement-Stabilized Soft Soil

Sustainability ◽

10.3390/su13042295 ◽

2021 ◽

Vol 13 (4) ◽

pp. 2295

Author(s):

Hailong Liu ◽

Jiuye Zhao ◽

Yu Wang ◽

Nangai Yi ◽

Chunyi Cui

Keyword(s):

Soft Soil ◽

Hydration Product ◽

X Ray Diffraction ◽

Calcium Sulfoaluminate Cement ◽

Strength Performance ◽

X Ray ◽

Calcium Sulfoaluminate ◽

Stabilized Soil ◽

Calcium Silicates ◽

Hydrated Calcium

Calcium sulfoaluminate cement (CSA) was used to stabilize a type of marine soft soil in Dalian China. Unconfined compressive strength (UCS) of CSA-stabilized soil was tested and compared to ordinary Portland cement (OPC); meanwhile the influence of amounts of gypsum in CSA and cement contents in stabilized soils on the strength of stabilized soils were investigated. X-ray diffraction (XRD) tests were employed to detect generated hydration products, and scanning electron microscopy (SEM) was conducted to analyze microstructures of CSA-stabilized soils. The results showed that UCS of CSA-stabilized soils at 1, 3, and 28 d firstly increased and then decreased with contents of gypsum increasing from 0 to 40 wt.%, and CSA-stabilized soils exhibited the highest UCS when the content of gypsum equaled 25 wt.%. When the mixing amounts of OPC and CSA were the same, CSA-stabilized soils had a significantly higher early strength (1 and 3 d) than OPC. For CSA-stabilized soil with 0 wt.% gypsum, monosulfate (AFm) was detected as a major hydration product. As for CSA-stabilized soil with certain amounts of gypsum, the intensity of ettringite (Aft) was significantly higher than that in the sample hydrating without gypsum, but a tiny peak of AFm also could be detected in the sample with 15 wt.% gypsum at 28 d. Additionally, the intensity of AFt increased with the contents of gypsum increasing from 0 to 25 wt.%. When contents of gypsum increased from 25 to 40 wt.%, the intensity of AFt tended to decrease slightly, and residual gypsum could be detected in the sample with 40 wt.% gypsum at 28 d. In the microstructure of OPC-stabilized soils, hexagonal plate-shaped calcium hydroxide (CH) constituted skeleton structures, and clusters of hydrated calcium silicates (C-S-H) gel adhered to particles of soils. In the microstructure of CSA-stabilized soils, AFt constituted skeleton structures, and the crystalline sizes of ettringite increased with contents of gypsum increasing; meanwhile, clusters of the aluminum hydroxide (AH3) phase could be observed to adhere to particles of soils and strengthen the interaction.

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