Heating Temperature Research Articles

Mechanical–Chemical Activation of Cement-Ash Binders to Improve the Properties of Heat-Resistant Mortars

The article demonstrates the effectiveness of the mechanochemical activation of a cement-ash binder by increasing the specific surface area of the ash and introducing a sodium fluorosilicate additive (Na2SiF6). It has been experimentally proved that the introduction of a Na2SiF6 additive makes it possible to increase the degree of cement hydration, as well as the intensity of free CaO binding when heating the cement-ash binder in the range of 500 °C to 800 °C. Mechanochemical activation prevents a decrease in the strength of the preheated cement-ash binder. During cyclic heating and cooling of slag mortars based on the activated cement-ash binder, an improvement in the set of basic properties was observed: compressive strength, flexural strength, water absorption, dynamic modulus of elasticity, and conditional elongation. Experimental design was carried out to obtain experimental–statistical models of mortar properties based on composition, heating temperature, and number of heating–cooling cycles. These models made it possible to develop quantitative relationships for predicting mortar properties at elevated temperatures and to rank the factors in order of importance. The optimal values for the dosage of fly ash, sodium silicofluoride additive, and the binder’s specific surface area were established. It was demonstrated that the activator has a positive effect on the thermal deformation of mortars.

INNOVATIVE SOLUTIONS FOR IMPROVING THE EXISTING HEAT EXCHANGE EQUIPMENT OF METALLURGICAL ENTERPRISES

Considered issues regarding the refusal to use natural gas in the technological process of air heating in air heaters ofblast furnaces (coopers) of metallurgical enterprises. An innovative solution is proposed – a technological schemeusing a heat generator for heating flue gases and improving the system of their heat utilization in order to increase thetemperature of air and gas entering the air heater by 150–200°C. The results of the test trials of the technologicalscheme, which were carried out under the following conditions, are presented: calorific value of the mixture of naturaland blast furnace gas – 826.4 kcal/m3 (3,459.3104 KJ); calorific value of blast furnace gas – 750.7 kcal/m3 (3,142.43KJ); air consumption per unit of air heaters – 58 thousand m3/h; temperature of combustion components in front ofheat exchangers: air – 10 °С; fuel – 35 °C; smoke temperature: at the exit from the air heaters – 230 °C; in front of thechimney – 130 °C. The results showed that its application will ensure an increase in the average temperature of blastheating by 60-110°С without the use of natural gas, the duration of operation of heat exchangers can be increased byat least 10 years, and the technical and economic indicators of the blast furnace process will also improve. Theproposed innovative solutions will allow: to abandon the use of natural gas for air heaters; ensure coke savings up to14 kg/t; increase the average heating temperature of blowing by 110°C; stable, long-term provision of the necessaryair heating temperatures. The use of these technical solutions will allow to increase the production of cast iron andreduce the consumption of natural gas to increase the temperature of hot blasting. In the future, similar schemes maybe used in the fuel preparation system for multi-fuel boiler units of metallurgical enterprises

Adsorption of Orange G on Activated Porous Carbon Derived from Coal Tar Pitch: Experimental and DFT Study.

A coal tar pitch-based porous carbon adsorbent (CPA) was synthesized through a straightforward method involving the heating of a mixture of KOH and coal tar pitch (CTP). This CPA exhibited a high surface area of 1811.2 m2 g-1 and a large pore volume of 0.94 cm3 g-1 when prepared with a CTP to KOH mass ratio of 1:4 at 800 °C. Parameters such as the heating temperature and activator dose were optimized to enhance the adsorption efficiency. The prepared CPA was extensively characterized by SEM, XRD, FTIR, and BET measurements. Notably, CPA presented a distinct adsorption performance for Orange G (OG), achieving a maximum adsorption capability of 449.7 mg g-1. Kinetic studies indicated that the adsorption process followed the pseudo-second-order model, while the adsorption isotherm data demonstrated that both chemical and physical interactions favored OG adsorption. Thermodynamic analysis revealed that the adsorption of OG on CPA was spontaneous and exothermic and increased the entropy. Density functional theory (DFT) calculations provided insights into the adsorption mechanism, highlighting electrostatic interactions, hydrogen bonds, and π-π interactions as the dominant processes governing OG adsorption onto the adsorbent.

Room temperature quantitative liquid concentration device and application to interleukins analysis in a B-cell culture medium.

In biological analysis and medical diagnosis, there is an increasing demand for improving the lower detection limit without deteriorating the quantitativity; however, it is usually challenging. In this study, we utilized a cyclone flow device and established a liquid concentration method. An air cyclone flow induced a liquid cyclone flow in the concentration devices and enhanced the air/liquid interface area, which allowed an effective concentration of liquid from mL to mL at room temperature. The heating temperature and actual temperature inside the liquid were investigated to know the cooling effect of evaporation. The collection efficiency of larger than 98% was confirmed with a standard solution. Finally, the analytical procedure to realize a quantitative concentration was established, and the concentration and quantification of interleukins (IL-8, IL-17, and IL-23) from the supernatant of the B-cell culture medium was demonstrated. The B-cell was stimulated with CD40L, and the supernatant was concentrated 27 times at maximum.

UTILIZATION OF CASSAVA PEEL AND CHITOSAN FOR THE PRODUCTION OF HYDROGEL AS A SUSTAINABLE SOLUTION FOR DOMESTIC WASTEWATER TREATMENT

Water pollution is a significant environmental issue, especially in developing countries where domestic wastewater often contains a high concentration of pollutants, posing risks to public health and the environment. Hydrogel from cassava peel and chitosan shows promise as a bioadsorbent for domestic wastewater treatment, but its capacity and optimal production temperature have not been fully studied. The study aimed to investigate the characteristics of hydrogel from cassava peel and chitosan, the optimal temperature for hydrogel production, and the efficacy of hydrogel as a bioadsorbent for domestic wastewater treatment. The study involved four stages: cellulose isolation, hydrogel preparation, wastewater treatment experimentation, and data analysis. The results showed that chitosan hydrogel synthesized at 750C had superior efficiency, achieving an optimal outcome of 88% in the treatment of household wastewater using a triad of chitosan hydrogel pellets. The degree of cross-linking in chitosan hydrogel diminished with an increase in heating temperature

Novel Insights into the Enrichment Pattern of Aroma and Taste in Cooked Marinated Meat Products of Black Pork via Typical Process Steps.

This study aims to reveal the evolution mechanism of odour and taste active compounds in cooked marinated pork knuckles via typical process steps; among them, the brine soup stage was the most important part due to spices' enriching flavours. These results revealed that the content and diversity of volatile compounds increased due to the addition of spices and heating temperature, imparting a unique aroma. Aldehydes played the main role in the overall odour. Benzaldehyde, hexanal, 1-octen-3-ol, levulinic acid, hydroxyacetone, ethyl octanoate, and 2-pentyl-furan were identified as the most important odour-active compounds. The key taste-active amino acids were glutamine, leucine, valine, and lysine. The IMP, AMP, and GMP provided a strong umami taste. Taste nucleotides and Val, Leu, Ile, and Phe were important precursor substances for aldehydes. The high responses of the electronic nose indicated that the gas component contained alkanes, alcohols, and aldehydes. The synergistic effects between umami-free amino acids and nucleotides correlated well with umami, as assessed by the electronic tongue. These results could be a starting point for the manufacturing industry, contributing to a better understanding of product performance.

Examining failures in rubber-cord couplings within ER2 series electric trains

The article provides statistics on failures of rubber-cord couplings of electric trains of the ER2 and ER2T series and of the diesel trains over the past 7 years. According to statistics, over the past 7 years, 107 rubber-cord couplings have failed. Of these, the largest number of cases of failure of rubber-cord couplings occurred on rolling stock of the ER2 series. Examining failed rubber-cord couplings, it was revealed that the cause of its failure was a rupture of the side surface. Replacing a rubber-cord coupling is a labour-intensive and costly process. Accordingly, the question arises: what causes the problem and what measures should be proposed to reduce the failures. For these purposes, the work presents a number of experiments in order to identify possible causes of failure of the rubber-cord coupling. The article presents studies of the heating temperature of rubber-cord couplings in operation on motor cars, as well as a number of studies of failed rubber-cord couplings removed from motor cars. During the research, such parameters as the date of the last repair and the date of failure of the rubber-cord coupling were taken into account. The number of days the motor car was in general operation was taken into account until the failure of the rubber-cord coupling, as well as the mileage of the motor car after the repair. Measurements were carried out of the geometric parameters of the rubber-cord coupling: outer and inner diameter, thickness of the side of the rubber-cord coupling. The torque of the rubber-cord coupling acting at speeds from 5 to 40 km/h, the forces acting in operation on the rubber-cord coupling were calculated, and torsional and shear stresses were also studied and determined. Research was carried out to determine the hardness of the rubber-cord coupling in the temperature range from –20 °C to 0 °C and from 0 °C to +22 °C, as well as from +22 °C to +60 °C. These parameters were taken since a rubber-cord coupling operates under the mentioned conditions. In conclusion, possible reasons for the failure of rubber-cord couplings are given, and recommendations for reduction of their frequency are proposed.

Abstract 4118671: Extreme ambient temperatures increase the risk of congenital heart disease mortality: insights from the national mortality surveillance system of China

Background: Climate change is intricately linked to human health, and the cardiovascular system is particularly susceptible to suboptimal temperatures, causing premature mortality. Extensive research has confirmed a robust link between non-optimal temperatures and most cardiovascular diseases; however, limited focus has been given to investigating the association between non-optimal temperatures and mortality related to congenital heart disease (CHD), one of the most prevalent cardiovascular diseases among children. Research question: Do extreme temperatures increase the risk of CHD mortality? Aims: We aimed to investigate the association between CHD mortality and ambient temperatures. Methods: Based on the national mortality surveillance system of China, we applied a two stage, individual level, time-stratified case-crossover design to investigate the association between CHD mortality and ambient temperatures from 2013 to 2021, with different thresholds of events. After estimation within each province of China, we pooled all the estimations using meta-analytic method. Sensitivity analyses and subgroup analyses were used to explore the stability and vulnerable population. Results: From 2013 to 2021, a total of 32168 CHD deaths were recorded. Neonates and adults constituted the primary age groups among all CHD-related deaths, with a majority of patients being male (55.2%). Cold temperatures exhibited a significant association with the risk of CHD mortality, while no significant association was observed with heat temperatures (Figure 1). Cold extremes made a significant contribution to CHD mortality in most defined events, with the highest contribution observed in P5_5d (indicating temperatures below the 5th percentile lasting for 5 days; odd ratio [OR]: 1.15, 95% CI: 1.03 to 1.29) (Figure 2). In comparison to male patients, female patients appeared to be more vulnerable to cold extremes, with ORs ranging from 1.08 (95% CI: 1.01 to 1.16) for P10_1d to 1.20 (95% CI: 1.01 to 1.43) for P5_5d. Conclusion: Extreme cold temperatures significantly increase the risk of CHD mortality. This is the first study performed to explore the relationship between ambient temperatures and CHD mortality, and it may suggest policy-adjustment in healthcare of CHD population.

Control of roughness-induced transition in supersonic flows by local wall heating strips

Isolated-roughness-induced transitions controlled by local wall heating strips are studied via direct numerical simulation and BiGlobal linear stability analysis. The transition mechanisms are studied first with different wall temperatures. The separated shear layer–counter-rotating vortex system is found to be the main source for transitions. Symmetric and antisymmetric modes are observed in the wake, and the former is dominant. The local wall heating strip can delay the transition, and this effect is enhanced with higher heating temperature, wider strip and a combination of upstream and downstream control strips. The upstream strip lifts up the inlet flow and weakens the wake system in an indirect manner. The antisymmetric mode gradually vanishes, while the symmetric mode always exists but becomes weaker. The downstream strip exhibits a more effective transition delay by directly weakening the separated shear layer and vortex system in the wake. Vorticity transport analysis suggests that the downstream strip increases dissipation for streamwise vorticity and transfers it into wall-normal and spanwise vorticity. BiGlobal analyses indicate that the downstream strip shows less influence on the peak growth rate of the symmetric mode but significantly shrinks its unstable region. Analyses of the disturbance energy production indicate that the upstream strip wakens the wall-normal and spanwise shear at the same time, but the downstream strip mainly wakens the wall-normal one. More simulations are performed with different roughness heights, point-source disturbance and different roughness shapes. The results show that the current method remains effective enough in delaying transitions at a wide range of conditions.

Granulometric properties of alkali metal chloride salts in induction heating-based pulsed spray drier: CFD-assisted study and validation

ABSTRACT Spray drying is one of the most widely used unit operation for producing solid directly from liquid solution form in single stage. In conventional co-current or counter-current spray drying arrangements, obtaining alkali metal chloride salts with uniform monosized particles and narrow particle size distribution is challenging because of anisotropic thermal utilisation of gas phase in drying chamber and also because of the hygroscopic nature of these salts. In the present work, the conventional counter-current spray drying arrangement is modified through incorporation of induction heating and mechanical pulsating techniques in the spray drying chamber to enhance the thermal uniformity of gas phase in the drying chamber. Laser diffraction analysis is used for measuring initial droplet size distribution. Meanwhile, a computational fluid dynamics (CFD)-assisted empirical model has been developed to predict particle properties at specified operating parameters of induction heating-based pulsed spray drier (IHPSD). Sensitivity analysis shows that the granulometric properties of all alkali metal chloride salts obtained from IHPSD are most significantly affected by changes in top plate temperature (induction heating temperature), followed by aqueous feed flow rate, then followed by atomiser air flow rate and are least affected by reciprocation rate of pulsating assembly.

Experimental Investigation of Heat Pipe Flow Dynamics and Performance

Due to their safety, efficiency, and passive operation, heat pipes have found diverse applications that include nuclear microreactors. Heat pipes enable increased reliability in microreactors, as they eliminate the need for reactor coolant pumps and their associated auxiliary systems while resulting in a greatly reduced spatial footprint. Experimental work is needed to support and expedite the design and licensing of heat pipe microreactors, especially the validation of heat pipe performance, as key heat transfer components. The present work develops a comprehensive heat pipe experimental database covering a wide range of heat pipe operating conditions. In addition, two-phase thermosyphon experiments are conducted to serve as a benchmark for performance. The operating conditions are determined based on previously developed scaling laws for heat pipes and two-phase thermosyphons using low-temperature working fluids. The tested heat pipe is about 2 m long and equipped with in-house-developed annulus screen wicks. To allow for the investigation of heat pipe flow dynamics, various instruments are incorporated to acquire heat pipe pressures, pressure drops, and temperatures. In particular, a fiberoptic sensor is implemented to measure temperatures along the centerline of the entire heat pipe. The results can be directly applied to the advancement of numerical tools currently under development for heat pipe microreactor analysis.

A feasibility study on improving the crack resistance of thin-walled UHPC members by reinforcement with Fe-SMA wires

To investigate the potential for further enhancing the cracking resistance of thin-walled UHPC by prestressing, the uniaxial tensile and three-point bending experiments for UHPC specimens reinforced with iron-based shape memory alloy (Fe-SMA) wires were conducted. The specimens were placed in an oven and heated to 150 °C, 200 °C, and 250 °C, which was intended to activate the Fe-SMA wires to produce self-prestress. The characteristics of different reinforced methods and heating temperatures were systematically compared. The cracking load and the crack development were recorded using Digital Image Correlation (DIC) techniques. The result shows that at the temperature of 150 ºC, compared to the dog-bone shaped specimens without reinforcement and the specimens with steel wires, the mean cracking load of specimens with Fe-SMA wires was enhanced by 13.4% and 9.8%, respectively. The study preliminary verified that this method can activate Fe-SMA inside UHPC.

Effects of heating temperature and atmosphere on element distribution and microstructure in high-Mn/Al austenitic low-density steel

Effects of heating temperature and atmosphere on element distribution and microstructure in high-Mn/Al austenitic low-density steel

Exploring the Potential of Pangasius Catfish Oil as a Base Oil for Nanoemulsion Products: Optimization and Characterization

Pangasius catfish, also known as striped catfish, is a high-fat fish compared to other freshwater fish like snakehead fish and carp. The oil extracted from this fish contains unsaturated and polyunsaturated fatty acids that are beneficial for health. The quality of the oil is affected by the extraction method, especially the preliminary heating temperature for the extraction. Pangasius catfish oil contains omega-3 fatty acids (EPA and DHA) that have the potential to inhibit inflammation, hyperpigmentation, accelerate skin healing for topical applications, and act as a skin permeation enhancer and oil base for nanoemulsion due to its high oleic acid content. In this research, an experimental design was conducted on pangasius catfish oil extraction using the pressing method to optimize predetermined parameters using Response Surface Methodology (RSM). The factors considered for optimization included the quantity of water and extraction temperatures, with water content ranging from 50% to 150% (w/v) and extraction temperatures ranging from 25°C to 55°C. These ranges were intended to yield results and characterization values of oxidation parameters are tested according to the International Fish Oil Standard (IFOS) through tests including Acid Value (AV), Peroxide Value (PV), Anisidine Value (p-AnV), and Total Oxidation (TOTOX). Subsequently, the optimal conditions were confirmed to obtain the best fish oil results, which were achieved at 1.5 times the amount of pre-treatment water and a pre-treatment temperature of 55°C. The pangasius catfish oil obtained from the confirmation of optimal conditions is used as a raw material for producing nanoemulsions. The D-Optimal Mixture Design of Design Expert approach is utilized to formulate the nanoemulsion. The nanoemulsion formula containing 0.5% pangasius catfish oil was determined as the optimal formula according to the range of physical characteristics of the referenced nanoemulsion preparations with a desirability value of 0.974. This study has demonstrated the potential utility of pangasius catfish oil as a prominent base oil in nanoemulsion products.

Tetrapanax papyriferus lignocellulosic skeleton aerogel enhanced with polyvinyl alcohol of high mechanical performance and thermal insulating

Biodegradable and renewable biomass aerogel has attracted significant attention because of its excellent characteristics. However, most aerogels were limited by poor mechanical strength and complex fabrication process. Herein, two delignified Tetrapanax papyriferus (TP) lignocellulosic samples (TP-SC, TP-FA/HAC) served as renewable porous skeletons with polyvinyl alcohol (PVA) modification to prepare high performance aerogels. The excellent pore structure facilitates the penetration of polyvinyl alcohol, which enhances the mechanical property and thermal stability of the resulting aerogel. The SC-8 h exhibited excellent mechanical strength with a bending stress of 102.9 MPa, 26.7 % increase in strain and 2.5 % in bending modulus compared to the TP-SC. The maximum thermal decomposition temperature of the FA/HAC-4 h was 358.6 °C, which was showed an outstanding thermal stability of the aerogel. Furthermore, these aerogels exhibited thermal insulating properties, and the maximum surface heating temperature after impregnation modification is lower than that of the original wood. This performance has a development prospect in the field of thermal insulation packaging and building structural materials. The high strength lignocellulosic skeleton aerogel could be prepared by a simple and effective strategy that preserved the original distinctive structure, offering a novel approach to the efficient utilization of TP.

Experimental study on the low-temperature preheating performance of positive-temperature-coefficient heating film in the prismatic power battery module

The performance of a power battery directly affects the thermal safety performance of the vehicle. Aiming at the improvement of thermal safety of lithium-ion batteries under low temperature condition, this study focuses on the effect of the positive-temperature-coefficient (PTC) heating film on the heating performance of batteries through experimental testing. First, the side and bottom of the cell were heated, and the heat transfer path and mode of the single cell were analyzed. The effects of different power densities and geometric positions on the heating effect were studied by testing the heating time and temperature consistency. Second, for the battery module, a low-temperature heating thermal management heat transfer model was built to analyze the heating mechanism of the heating film under different heating power densities. Finally, the results of these studies were synthesized to obtain the optimal heating power density. The results show that for the cell, the optimum power density of side heating and bottom heating is 0.5 W /cm2 and 0.4 W /cm2, respectively. The time required for side heating from −20 °C to 10 °C is 730 s lower than that of bottom heating, and the maximum temperature difference is 1.885 °C lower. For battery modules, a power density of 0.5 W/cm2 was appropriate for both bottom and side heating methods. Due to the existence of heat conduction between battery packs, the battery modules will be quickly and evenly preheated. Under the optimal power density, the time length for side heating from –20 °C to 10 °C was 1459 s, and the maximum temperature difference was 6.32 °C; bottom heating time required slightly more time (1783 s), and the maximum temperature difference was 6.221 °C. Side heating can be beneficial for the rapid preheating of the battery module. This study will contribute to improving the performance and safety of batteries in cold environments.

Thermal-Induced Alterations in Phenolic and Volatile Profiles of Monovarietal Extra Virgin Olive Oils.

In the present study, the influence of heating on the evolution of oxidative indices, antioxidant activity, phenolic and volatile compounds in monovarietal extra virgin olive oils (EVOOs) obtained from Leccino, Istarska bjelica, and Buža cultivars was investigated. The samples were submitted to heating in an air oven (180 °C and 220 °C), simulating usual roasting conditions typical for Mediterranean cuisine. The decreases in the oxidative indicators, phenolic and volatile compounds were more pronounced at higher heating temperatures, underlining the temperature dependency of the oxidative degradation during heating conditions. Despite this, it must be emphasized that a significant amount of phenolic compounds and antioxidative activity remained preserved after the heating treatment. Each oil cultivar showed some specificity during the course of the thermal degradation. Hydroxytyrosol acetate among phenolic compounds and octanal, (E)-2-octenal, hexanal, 3-pentanone, and 1-penten-3-one among the volatiles were underlined as possible markers of thermal oxidation. Principal component analysis revealed that the content of volatile compounds in monovarietal EVOO samples distinguished samples primarily by the heating temperature, while the changes in the phenolic compounds were cultivar-dependent aside from being influenced by the temperature of heating.

Wavelength selection enables robust quantification of oil content with near-infrared spectroscopy in pea protein gels produced under varying heating conditions

Thermal processing influences the near-infrared (NIR) spectra of food products, causing inaccuracy when quantifying the composition of the product. In this study, the effect of thermal processing on NIR measurements of the oil content in pea protein isolate (PPI) gels was investigated. Analysis of variance showed that the heating temperature (30°C–120 °C) during the production of PPI gels influenced large parts of the NIR spectra and time (2.5–15 min) only had a limited effect. Stepwise multiple linear regression was used to select a combination of 5 wavelengths that was suitable to create a robust model for the prediction of oil content (Q2 = 0.9928 ± 0.002, root mean standard error of prediction = 0.2806 ± 0.0423 wt%). This combination of wavelengths was shown to reduce the effect of the history of thermal processing on the measurement, improving the accuracy of oil content quantification. This approach can be applied for in-line quantification of the oil content of food products subjected to varying heating conditions using specialized sensors.

Research on Hybrid Heating System in Cold Oilfield Regions

Efficient and clean treatment of wastewater and energy recovery and utilization are important links to realize low-carbon development of oilfields. Therefore, this paper innovatively proposes a multi-energy complementary co-production heating system which fully and efficiently utilizes solar energy resources, oilfield waste heat resources, and biomass resources. At the same time, a typical dormitory building in the oil region was selected as the research object, the system equipment selection was calculated according to the relevant design specifications. On this basis, the simulation system model is established, and the evaluation index and operation control strategy suitable for the system are proposed. The energy utilization rate of the system and the economic, energy-saving, and environmental benefits of the system are simulated. The results show that, under the simulated conditions of two typical days and a heating season, the main heat load of the system is borne by the sewage source heat pump, the energy efficiency is relatively low in the cold period, and the energy-saving characteristics are not obvious. With the increase in heating temperature and anaerobic reactor volume, the energy consumption of the system also increases, and the energy efficiency ratio of each subsystem and the comprehensive energy efficiency ratio of the system gradually decrease. In addition, although the initial investment in cogeneration heating systems is high, the operating costs and environmental benefits are huge. Under the condition of maintaining 35 °C, the anaerobic reactor in the system can reduce carbon emissions by 12.15 t per year, reduce sulfur dioxide emissions by 98.4 kg, reduce dust emissions by 49.2 kg, and treat up to 2700 t of sewage per year, which has broad application prospects.

Optimum Thermal Treatment for Removing Antibiotic Resistance Genes and Retaining Nutrients in Poultry Broiler Manure

Poultry broiler manure is a reservoir of antibiotic resistance genes (ARGs), antibiotics, organic carbon, and plant nutrients. However, its direct application leads to spread of ARGs in agricultural fields, causing public concerns. It is thus crucial to identify optimum heating conditions that remove ARGs while retaining nutrients. This study examined the effects of heating temperatures (100-500oC) and durations (30, 120 and 240min) on the removals of ARGs and antibiotics from poultry broiler manure and nutrient retention. The results showed that the poultry broiler manure contained a total of 211 ARG subtypes, which were susceptible to temperature. The contents of ARGs and antibiotics decreased with increasing temperature. The temperature had a significant effect on the loss of available phosphorus (r = -0.893, P <0.01), while other nutrients had no significant loss. The results show that the heat treatment at 110°C for 240min maximized the removals of ARGs while the loss of nutrients was minimized. Under these optimum conditions, all ARGs and antibiotics (e.g., oxytetracycline, tetracycline, doxycycline, tilmicosin, tylosin, sulfamethazine, and sulfadiazine) were removed while 91.98% of total carbon, 99.89% of total nitrogen, 92.38% of total phosphorus, 50.10% of available phosphorus, 99.96% of total potassium, and 95.02% available potassium were preserved. These findings suggest that heat treatment at 110oC for 240min could be an effective and affordable approach to safe use of poultry broiler manure.