Design and Testing of a Small-Scale Composting Facility for Sheep Manure Utilizing Aeration and Thermal Treatment DOI Creative Commons
Jian Wang,

Kailin Ren,

Longfei Zhang

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(11), P. 2070 - 2070

Published: Nov. 18, 2024

Inner Mongolia has the largest sheep population among China’s provinces, resulting in production of a substantial amount manure. If left untreated, this manure can contribute to environmental pollution. However, serves dual purpose: it be both pollutant and valuable source organic fertilizer. Consequently, there is an urgent need address issues arising from accumulation its unused status. In paper, viable solution proposed: conversion into fertilizer through composting unit incorporating high-temperature aerobic fermentation technology. This unit, tailored for small farms individual farmers, integrates critical functions such as ventilation, heating, turning. Additionally, boasts excellent thermal insulation, enhancing efficiency enabling precise control over conditions. design mitigates heat loss accelerates maturation, addressing common challenges traditional composting. The process encompassed equipment construction systems, with primary focus on compost aeration heating. components were carefully designed or selected based theoretical analysis subsequently validated using simulation software, including EDEM Fluent. system seamlessly touch screen interface, PLC programming, circuits manage air pumps electric heaters response changes temperature oxygen concentration. Furthermore, controls motors during recovery phase. A comprehensive performance evaluation was conducted, revealing notable improvements. Under artificially heated conditions, maximum increased by approximately 20 °C, cycle reduced roughly 4 days, seed germination index (GI) rose about 9% when compared natural fermentation. Thus, device significantly improves quality increasing decomposition rate.

Language: Английский

Possibilities of Climate Control of Poultry Complexes through Co-Combustion of Poultry Waste–Solid Biomass for Agriculture in Romania DOI Creative Commons
Gheorghe Lăzăroiu,

Lucian Mihăescu,

Rodica-Manuela Grigoriu

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(3), P. 428 - 428

Published: March 6, 2024

The dynamics of poultry waste co-combustion with solid biomass has been theoretically and experimentally analyzed by authors in several works. current work is focused on a case study regarding the energy recovery from order to use it for heating 1000 m3 chicken rearing complex, considering specific climatic conditions Romania. Even if significant national potential, there are only few experimental incentives our country production. Since manure characterized high moisture low calorific value, its was chosen. Thus, laboratory experiments involving combustion 20–30% were carried out 55 kW pilot boiler. This an environmentally friendly low-cost approach. tests showed that phosphorus potassium concentrated combustible mass disappearance ash (P = 3.2–5.5% K 2.2–3.8%), leading conclusion represents much more valuable fertilizer than raw waste, since lighter easier store, transport, spread over agricultural area. mix taken into account hall module needs each period (cycle) development chicken-bird flow accordance temperate-continental climate, such as Romania’s climate. resulting annual fuel consumption 53.27 t. quantity 42.60 t 10.67 manure. pollutant emissions within legal limits no presence ammonia, which incinerated layer surface.

Language: Английский

Citations

4
Research on the Composting Technology of Cattle and Sheep Manure Based on Intelligent and Efficient Composting Equipment and the Evaluation Standard of Decomposition Degree DOI Creative Commons
Lide Su, Kailin Ren, Yong Zhang

et al.

Fermentation, Journal Year: 2024, Volume and Issue: 10(7), P. 328 - 328

Published: June 22, 2024

The Inner Mongolia Autonomous Region is a crucial area in China with significant advantage animal husbandry, particularly cattle and sheep farming. However, the disposal of large quantities manure produced during farming has severely impacted industry’s healthy development. Proper treatment can convert it into organic fertilizer beneficial to farmland; otherwise, will cause substantial environmental pollution. This study focuses on existing composting equipment addresses issues mixture ratios compost maturity evaluation. Through experiments manure, optimal ratio for converting was determined. Additionally, fuzzy mathematical evaluation model employed, along experimental data, establish comprehensive system aerobic based multiple indicators, revealing variation patterns levels under different ratios. test results revealed that effectively controls process, shortens cycle, ensures complete decomposition matter, meets national standards livestock poultry treatment. Regarding temperature humidity, oxygen concentration, seed germination rate, pH value, electrical conductivity (EC), nitrogen, phosphorus, potassium content, carbon-to-nitrogen ratio, mixed various met relevant agricultural application. Various fertilizers containing significantly promoted growth maize, wheat, mung bean crops. Specifically, cycle shortest when dung were at 2:1, while longest all dung. Finally, established by selecting four indicators: water apparent score, index. demonstrates method offer advantages efficiently treating producing fertilizer, thereby providing strong support sustainable development husbandry.

Language: Английский

Citations

2
Investigation of the Composting Process of Mongolian Horse Manure Utilizing Intelligent Composting Equipment DOI Creative Commons
Jian Wang, Kailin Ren, Yong Zhang

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(9), P. 2083 - 2083

Published: Sept. 12, 2024

The Inner Mongolia Autonomous Region, known for its famous Mongolian horses, faces significant environmental challenges due to the large-scale rearing of these animals, which produces a substantial amount manure. If not managed effectively, this manure can lead severe pollution. aim study was investigate whether small-scale intelligent aeration and heating composting system is effective in treating horse manure, with objective enhancing efficiency resource utilization support sustainable agricultural development region. equipment utilized treat compost mixture corn stover, allowing an analysis changes key indicators throughout process. results demonstrated that maintained high temperatures up eight days during process, effectively inactivating pathogens promoting efficient decomposition organic matter. also successfully controlled humidity 12.7% oxygen concentration within optimal range. Post-composting revealed final contained 2.3% nitrogen, 1.3% phosphorus, 1.2% potassium, pH 6.4 conductivity approximately 5.2 mS/cm. Additionally, carbon-to-nitrogen ratio decreased significantly from 27.3 15.9, indicating matter degradation. Seed germination tests showed rates 80%, 86%, 75% corn, mung bean, wheat, respectively, seed index 104%. This concluded small highly producing high-quality fertilizers enhance soil fertility demonstrate considerable potential supporting practices improving management Region.

Language: Английский

Citations

1
An Investigation on a Comprehensive Calibration Technique to Determine the Discrete Elemental Characteristics of Unrotted Sheep Dung at Varying Water Concentrations DOI Creative Commons
Jian Wang,

Kailin Ren,

Zhe Li

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(10), P. 1762 - 1762

Published: Oct. 6, 2024

An experimental study was undertaken to investigate the problem of substantial variability in water content unrotted sheep dung, which leads a lack universality and practicality calibrating its discrete element simulation parameters. The stacking angle used as response value these experiments. objective this establish precise parameters for composting process. A model content-stacking established using cylinder-lifting technique, resulting correlation 0.997. Utilizing Hertz–Mindlin with JKR bonding model, three EDEM particle models were developed, each distinct sizes, based on size distribution dung. surface energy determined Plackett–Burman test, steepest-climbing Box–Behnken test set 10 subsequent conducted energy, rolling friction factor, static factor utilizing test. parameter angle–discrete elements developed that achieved p-value below 0.0001 relative inaccuracy 3.46% or less. regression content–discrete derived by combining content–stacking model. Validation both pumping plate technique hopper approach, error 4.89% findings demonstrate specific characteristics manure may be accurately anticipated considering content. This approach offers valid universally applicable way predicting dung equipment.

Language: Английский

Citations

1
Design and Testing of a Small-Scale Composting Facility for Sheep Manure Utilizing Aeration and Thermal Treatment DOI Creative Commons
Jian Wang,

Kailin Ren,

Longfei Zhang

et al.

Agriculture, Journal Year: 2024, Volume and Issue: 14(11), P. 2070 - 2070

Published: Nov. 18, 2024

Inner Mongolia has the largest sheep population among China’s provinces, resulting in production of a substantial amount manure. If left untreated, this manure can contribute to environmental pollution. However, serves dual purpose: it be both pollutant and valuable source organic fertilizer. Consequently, there is an urgent need address issues arising from accumulation its unused status. In paper, viable solution proposed: conversion into fertilizer through composting unit incorporating high-temperature aerobic fermentation technology. This unit, tailored for small farms individual farmers, integrates critical functions such as ventilation, heating, turning. Additionally, boasts excellent thermal insulation, enhancing efficiency enabling precise control over conditions. design mitigates heat loss accelerates maturation, addressing common challenges traditional composting. The process encompassed equipment construction systems, with primary focus on compost aeration heating. components were carefully designed or selected based theoretical analysis subsequently validated using simulation software, including EDEM Fluent. system seamlessly touch screen interface, PLC programming, circuits manage air pumps electric heaters response changes temperature oxygen concentration. Furthermore, controls motors during recovery phase. A comprehensive performance evaluation was conducted, revealing notable improvements. Under artificially heated conditions, maximum increased by approximately 20 °C, cycle reduced roughly 4 days, seed germination index (GI) rose about 9% when compared natural fermentation. Thus, device significantly improves quality increasing decomposition rate.

Language: Английский

Citations

0