A Review of piggery manure management: generally, across western, Asian and African countries

Machete, James Buttie; Chabo, R.G.

doi:10.37106/bojaas.2020.17

Cited by 10 publications

(4 citation statements)

References 26 publications

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“…The annual production of swine manure in South Korea exceeds 20.5 million tons, and accounts for 41% of the total domestic annual manure generation [ 2 ]. Manure has been used as a fertilizer for centuries and is regarded as a valuable resource for increasing soil productivity [ 3 , 4 ]. Livestock manure contains high nitrogen (N), phosphorus (P), and other nutrient (complex organic compounds, undigested food components, and gut microorganisms) contents.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Control Technology for a Bio-Liquor Circulation System in a Swine Barn with Slurry Pit: Pilot Scale Study

Kim

Shim

Won

et al. 2022

Animals

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The livestock industry, especially swine production, has been pressurized by vicinity complaints about odor in Korea. Therefore, a lot of effort has been undertaken regarding reducing the odor emissions from pigsties, widely carried out and the washing out manure in slurry pit by liquid-phase compost has particularly been spotlighted with outstanding performance of odor reduction. However, such a washing out manure called bio-liquor circulation system (BCS) has been controlled by a timer with designated reaction time, which cannot guarantee the system performance. This research proposes an effective real-time control technology for BCS, which circulates bio-liquor to the slurry pit of swine barns. The real-time control system was operated through accurate detection of the designated control points on the oxidation reduction potential (ORP) and pH time profiles for the nitrate knee point (NKP) and nitrogen break point (NBP) in anoxic and aerobic conditions with 100 and 99.6% performances, respectively. The duration of the anoxic and aerobic phases was also automated and noticeably lowered the concentration of nutrients in the manure in the slurry-pit, which served as a source of malodor. The real-time control strategy may be an innovative way to reduce odor and simultaneously produce liquid fertilizer, and provides a reference for the optimization of the industrial scale.

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Section: Introductionmentioning

confidence: 99%

Real-Time Control Technology for a Bio-Liquor Circulation System in a Swine Barn with Slurry Pit: Pilot Scale Study

Kim

Shim

Won

et al. 2022

Animals

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“…In Southeast Asian countries, the traditional demand for pork is driving a rapid increase in pig production, leading to large quantities of animal manure that must be managed (Machete and Chabo, 2020). Appropriate manure management strategies are required that have minimal effects on the environment, facilitate the efficient recycling of plant nutrients and, preferably, generate energy with little or no global warming potential.…”

Section: Research Scopementioning

confidence: 99%

Factors affecting the willingness to pay for biogas digestor construction of pig farms in Champasak province Lao PDR

Fongsamouthb,

Moonphoxay,

Phaxaisithidet

et al. 2024

Preprint

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This paper aims to estimate the environmental issue and policy recommendations for supporting biogas digestor construction. An environmental evaluation related to environmental protection and raising natural resources as renewable energy to persuasion policy applies to pig farms with the idea of building a biogas digestor. The main occupation of the household has a relationship in the same direction as the WTP, agricultural occupation as their main occupation, especially crop producing and feeding animals, be willing to pay more than the households that are engaged in other occupations because the households that are engaged in agricultural production have high expectations for the not only benefits producing biogas, but also high-quality compost that can be used for their crops producing as well. They are willing to pay more than others, especially in a situation where the price of chemical fertilizers is high like the current situation. The period of raising pigs (year) has a relationship in the opposite direction to the WTP, and households with increased periods of raising pigs have the opportunity to be willing to pay less with a statistical significance level of 90%. It may be because the number of pigs has a relationship in the same direction with WTP, according to the hypothesis, a household with an increase in the number of pigs in the farm has a chance to be willing to pay by 1.43% with a statistical confidence level of 99%.

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“…Even though most manures are good fertilizers, Cu and Zn are added to feeds in the pig and poultry industries as growth promoters. As a result of their presence in poultry, health products can potentially contaminate the soil with heavy metals (Machete and Chabo 2020). The manures produced by animals fed on such diets have significant As, Cu, and Zn quantities.…”

Section: Biosolids and Manures As A Source Of Heavy Metalsmentioning

confidence: 99%

“…Despite Pb's more excellent stability consistent, Ca 2+ is readily available. It preferentially binds to Na 2 EDTA because of the number of heterocyclic rings produced and the relative concentrations of the two EDTA salts in the bodily fluid (Machete and Chabo 2020;Treviño et al 2019). Furthermore, even if an ideal chelator possesses all the required characteristics, the results are unpredictable.…”

Section: Chelating Agentsmentioning

confidence: 99%

Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments

Alsafran

Saleem

Jabri

et al. 2022

J Plant Growth Regul

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Contamination of agricultural soils with heavy metals present lethal consequences in terms of diverse ecological and environmental problems that entail entry of metal in food chain, soil deterioration, plant growth suppression, yield reduction and alteration in microbial community. Metal polluted soils have become a major concern for scientists around the globe. In more recent times, armed with new knowledge and understanding, removal of heavy metals using different applications has emerged as a solution for waste treatment and contaminant remediation in water and soil. However, the description of metal toxicity to the plants and its removal and degradation from the soil is limited. There are a number of reports in the literature where PGP bacterial inoculation and various chelating agents improves metal accumulation and it’s detoxification in different plant parts without influencing plant growth. Therefore, there is a need to select some useful chemicals which possess the potential to improve plant growth as well as expedite the phytoremediation of metals. In this review, we have discussed the mechanisms possessed by different chelating agents to promote plant growth and phytoremediation of metals. We anticipate that this analysis of interconnected systems will lead to the discovery of new research fields.

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A Review of piggery manure management: generally, across western, Asian and African countries

Cited by 10 publications

References 26 publications

Real-Time Control Technology for a Bio-Liquor Circulation System in a Swine Barn with Slurry Pit: Pilot Scale Study

Real-Time Control Technology for a Bio-Liquor Circulation System in a Swine Barn with Slurry Pit: Pilot Scale Study

Factors affecting the willingness to pay for biogas digestor construction of pig farms in Champasak province Lao PDR

Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments

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