- Bài báo VV88 Nhà cái uy tín hàng đầu tại Việt Nam về trò chơi Casino, Bắn cá, Xổ số, Đá Gà trong nước: 01 bài báo đăng trên tạp chí VV88 Nhà cái uy tín hàng đầu tại Việt Nam về trò chơi Casino, Bắn cá, Xổ số, Đá Gà trong nước được HĐGSNN tính điểm (từ 0.75 điểm trở lên):

(3). Hoang Trung Kien, Van Huu Tap, Hoang Van Hung, Vi Thuy Linh, Nguyen Thi Bich Hanh, Nguyen Thi Mai Linh, Nguyen Thu Huong, Hoang Le Phuong, Van Huu Luong Nguyen, Do Diep Anh (2025). Nghiên cứu xử lý thuốc nhuộm xanh methylene bằng vật liệu hấp phụ chế tạo từ chất thải dệt may, TNU Journal of Science and Technology 230(14): 19 - 27; Link: https://jst.vvtamtam.com/jst/article/view/13207. (Tạp chí được Hội đồng giáo sư liên ngành Xây dựng - Kiến trúc tính 1,0 điểm theo quyết định 26/QĐ-HĐGSNN ngày 11/7/2025 của Hội đồng giáo sư nhà nước về việc phê duyệt danh mục các tạp chí VV88 Nhà cái uy tín hàng đầu tại Việt Nam về trò chơi Casino, Bắn cá, Xổ số, Đá Gà được tính điểm năm 2025, trong đó có chuyên ngành Kỹ thuật Môi trường).

5.2. Sản phẩm đào tạo

- Hỗ trợ đào tạo 01 VV88 casino nhà cái sinh theo hướng của đề tài: NCS. Nguyễn Thu Hường, Tên luận án: “Nghiên cứu xử lý kim loại nặng (Pb, Cd) và độ màu trong nước thải bằng vật liệu hấp phụ chế tạo từ chất thải ngành dệt may”.

5.3. Sản phẩm ứng dụng

- 01 mô hình lò đốt nhiệt phân mini quy mô phòng thí nghiệm chuyển hoá rác thải từ dệt may và sinh hoạt thành than.

- 01 quy trình xử lý rác thải dệt may và rác sinh hoạt theo công nghệ nhiệt phân yếm khí tuần hoàn nhằm tạo thành than với các điều kiện kĩ thuật tối ưu (thành phần rác thải. độ ẩm. nhiệt độ tối ưu. thời gian chuyển hoá. chất lượng than sản phẩm).

- 01 báo cáo đánh giá tiềm năng ứng dụng than sản phẩm dùng làm nhiên liệu cho quá trình sản xuất khác, đánh giá hiệu quả về kinh tế-xã hội và VV 88 kèo WC 2026.

6. Phương thức chuyển giao, địa chỉ ứng dụng, tác động và lợi ích mang lại của kết quả VV88 casino nhà cái

- Phương thức chuyển giao: Chuyển giao các kết quả VV88 casino nhà cái dưới dạng văn bản (báo cáo, bài báo VV88 Nhà cái uy tín hàng đầu tại Việt Nam về trò chơi Casino, Bắn cá, Xổ số, Đá Gà).

- Địa chỉ ứng dụng: Đề tài sẽ chuyển giao cho Trung tâm Học liệu của VV88 🎖️ Link Trang Chủ Nhà Cái VV88 Cá Cược Thể Thao, Thư viện Trường VV88 bet thể thao, casino, bắn cá, nổ hũ, tài xỉu Khoa học – VV88 🎖️ Link Trang Chủ Nhà Cái VV88 Cá Cược Thể Thao làm tài liệu tham khảo cho sinh viên, giảng viên và những nhà VV88 Nhà cái uy tín hàng đầu tại Việt Nam về trò chơi Casino, Bắn cá, Xổ số, Đá Gà quan tâm đến lĩnh vực VV88 casino nhà cái xử lý nước thải.

- Tác động và lợi ích mang lại của kết quả VV88 casino nhà cái: TKết quả VV88 casino nhà cái mang lại tác động và lợi ích rõ rệt cả về VV88 Nhà cái uy tín hàng đầu tại Việt Nam về trò chơi Casino, Bắn cá, Xổ số, Đá Gà, thực tiễn và VV 88 kèo WC 2026, thể hiện ở việc đã xây dựng được mô hình lò nhiệt phân tuần hoàn khí quy mô phòng thí nghiệm để chuyển hóa rác thải dệt may và rác thải sinh hoạt thành than có giá trị, đồng thời tạo ra các vật liệu than có khả năng ứng dụng thực tế trong xử lý ô nhiễm và sử dụng năng lượng. Nghiên cứu đã chứng minh rằng chất thải rắn khó quản lý có thể được chuyển hóa theo hướng tái chế chất thải, góp phần giảm lượng rác phải chôn lấp hoặc đốt bỏ trực tiếp, đồng thời tạo ra sản phẩm thứ cấp có ích. Về mặt ứng dụng, than từ vải thải, đặc biệt là mẫu TVT600, cho hiệu quả hấp phụ tốt đối với Pb, Cr, NH4+ và metylen xanh, trong khi TVT800 có nhiệt trị cao, cho thấy tiềm năng sử dụng như nhiên liệu rắn thay thế. Điều này mở ra khả năng tận dụng đồng thời chất thải cho cả mục tiêu xử lý VV 88 kèo WC 2026 và thu hồi giá trị năng lượng. Về mặt xã hội, kết quả VV88 casino nhà cái góp phần định hướng một giải pháp phù hợp cho quản lý rác thải phân tán ở nông thôn và quy mô nhỏ, thúc đẩy cách tiếp cận kinh tế tuần hoàn, nâng cao giá trị của chất thải và giảm áp lực cho hệ thống xử lý tập trung. Về mặt VV 88 kèo WC 2026, hướng VV88 casino nhà cái này có ý nghĩa tích cực vì vừa giảm tải chất thải rắn, vừa tạo ra vật liệu có khả năng xử lý nước ô nhiễm, đồng thời phù hợp với xu hướng sử dụng than sinh hoc như một giải pháp hỗ trợ giảm tác động VV 88 kèo WC 2026 và tận dụng carbon bền trong quản lý chất thải và xử lý ô nhiễm.

INFORMATION OF RESEARCH RESULTS

1. General information

Project title: Conversion of textile industrial waste into value-added than sinh hoc  for  multiple  applications  using  circulating  anaerobic  pyrolysis  technology without generating environmental pollution.

Code: B2024-TNA-07

Project Leader: M.Sc. Hoang Trung Kien

Hosting Organization: Thai Nguyen University

Duration: From January 2024 to June 2026 (Extension granted until June 2026).

2. Research objectives

Objective 1: To develop a circulating pyrolysis model for converting textile waste and municipal solid waste into value-added than sinh hoc̣.

Objective 2: To determine the optimal pyrolysis temperature and retention time for complete conversion of textile waste and municipal solid waste into than sinh  hoc̣.

Objective 3: To apply the resulting than sinh hoc as an adsorbent for environmental remediation and to assess its potential for other applications.

3. Novelty and innovation of the project

The novelty and innovation of the project lie in the development of a circulating anaerobic pyrolysis model capable of simultaneously converting textile waste and municipal solid waste into value-added than sinh hoc̣ , while clarifying  the relationships among pyrolysis conditions, material structural characteristics, and the application potential of the resulting than sinh hoc̣ . On this basis, the project not only identified suitable fabrication conditions for producing high-quality than sinh hoc  materials,  but  also  demonstrated  their  multifunctional  applicability  in  the removal of Pb, Cr, ammonium, and methylene blue, as well as their potential use as a solid fuel substitute. A notable outcome of the study is the identification of TVT600 as the optimal adsorbent material and TVT800 as a highly promising material for energy applications, thereby clearly highlighting the practical applicability and scientific value of waste conversion within a circular economy framework.

4. Research results

Based on the obtained results, the project achieved the following major outcomes:

The study successfully designed and fabricated a laboratory-scale circulating- gas pyrolysis furnace for converting textile waste and municipal solid waste into value-added than sinh hoc̣ . The system was designed in a vertical cylindrical configuration, operating on the principle of indirect heating combined with hot-gas recirculation, with the pyrolysis chamber located in the upper section and the heating chamber in the lower section. The reactor was fabricated from 2 mm thick stainless steel, with a height of 1680 mm, a diameter of 770 mm, a pyrolysis chamber door of 460 × 670 mm, and a heating chamber door of 200 × 200 mm.

The investigation of than sinh hoc production conditions showed that pyrolysis temperature and residence time strongly affected the degree of carbonization, moisture content, ash content, and overall product quality. For both feedstocks, increasing the temperature from 400 to 800 °C led to an increase in carbon content, while moisture and ash contents decreased. For the textile-waste-derived than sinh hoc system, the carbon content increased from 52.58% at 400 °C to 61.08% at 600 °C and 76.35% at 800 °C; the calorific value increased correspondingly from 6432 to 6598 and 6906 kcal/kg. For the municipal-solid-waste-derived than sinh hoc̣ system, the carbon content increased from 29.99% to 35.87% and 45.28%, while  the calorific value increased from 3052 to 4057 and 4401 kcal/kg. In terms of pyrolysis duration, 2 h was found to be an appropriate retention time for achieving a high degree of carbonization for both feedstocks.

Material characterization using SEM–EDX, XRD, FTIR and BET showed that the nature of the raw feedstock clearly determined the structural characteristics of the resulting than sinh hoc̣ . The TVT600 sample exhibited the most favorable structure, with a specific surface area of 56.85 m²/g, a pore volume of 0.040 cm³/g, and a pore size of 3.21 nm, which were markedly higher than those of TVT400 and TVT800.  In  contrast,  than  sinh  hoc  derived  from  municipal  solid  waste  was identified as a multiphase carbon–mineral system with a higher inorganic fraction; its surface area decreased from 27.76 m²/g for TRSH400 to 11.83 m²/g for TRSH600 and 10.60 m²/g for TRSH800.

For heavy metal adsorption applications, the results showed that than sinh hoc̣ derived from textile waste exhibited better Pb and Cr removal performance than that derived from municipal solid waste. For Pb, the generally optimal pH was 7; the TVT600 sample showed the highest adsorption capacity of 7.64 mg/g, corresponding to a removal efficiency of 83.11%, whereas the best-performing sample in the TRSH system, TRSH400, only reached 6.76 mg/g and 73.49%. For Cr, the favorable pH range was 3–7; TVT600 achieved the highest adsorption capacity of 9.15 mg/g at pH 5 and still maintained 9.03 mg/g at pH 7, while the best sample in the TRSH system, TRSH400, reached approximately 7.65 mg/g. In terms of adsorption kinetics, both Pb and Cr adsorption occurred rapidly during the first 30–60 min and approached equilibrium after 90–150 min. The kinetic data for the TVT system were best described by the pseudo-first-order model, with the highest R² values ranging from 0.9703 to 0.9917. Isotherm analysis indicated that the Sips model was the most suitable for Pb and Cr adsorption in the TVT system.

For ammonium, pH significantly affected adsorption capacity, which increased from pH 3 to 9 and then decreased at pH 11. The TVT600 sample showed the best performance, with an adsorption capacity of 8.08 mg/g and a removal efficiency of 74.20% at pH 9. In the TRSH system, TRSH400 was the best-performing sample, with a q value of 7.32 mg/g and a removal efficiency of 67.24% at pH 9. Ammonium adsorption kinetics showed that the process was rapid during the first 30–60 min, then gradually slowed and approached equilibrium after 180–240 min. Most samples were best described by the pseudo-second-order kinetic model. In terms of isotherm behavior, TVT600 exhibited the highest experimental adsorption capacity of 17.42 mg/g, with a Langmuir qmax of 20.43 mg/g, whereas in the TRSH system, the best sample was TRSH400 with an experimental q of 14.52 mg/g and a Langmuir qmax of 16.15 mg/g.

For methylene blue, both groups of materials exhibited good adsorption performance, although the TVT system remained superior. The effect of solution pH followed a trend in which adsorption capacity increased from pH 3 to 9 and then remained nearly unchanged or slightly decreased at pH 11. TVT600 achieved the highest performance, with q = 19.19 mg/g and a removal efficiency of 95.94% at pH 9, while the best-performing sample in the TRSH system, TRSH600, achieved q = 17.52 mg/g and a removal efficiency of 87.62%. In terms of kinetics, MB adsorption was very rapid during the first 30–60 min and approached equilibrium after approximately 90 min. The kinetic data were best described by the pseudo- first-order model, with R² values as high as 0.9775–0.9996. For adsorption isotherms, the Langmuir model was the most appropriate for MB adsorption on most samples, indicating that monolayer adsorption was the dominant mechanism. TVT600 remained the optimal material, with an experimental adsorption capacity  of 87.22 mg/g and a Langmuir qmax of 94.01 mg/g, markedly higher than those of the other samples. In the TRSH system, the best sample was TRSH400, with qe,exp = 80.01 mg/g and qmax = 87.10 mg/g.

Among all investigated samples, TVT600 was identified as the optimal adsorbent because it achieved a favorable balance among carbonization degree,  pore structure, and retention of active surface functional groups. In contrast, for solid fuel substitution, TVT800 showed the greatest promise due to its highest carbon content and calorific value, reaching 76.35% and 6906 kcal/kg, respectively. For the TRSH system, both adsorption and energy potentials were lower, although TRSH400 and TRSH600 could still be considered moderately promising materials.

5. Products

5.1. Scientific products

- International journal articles: Two papers published or accepted for publication in SCIE-indexed journals, ranked Q2:

(1) Van Hung Hoang, Thi Minh Phuong Nguyen, Thi Dong Nguyen, Thi Hong Vien Nguyen, Thi Hong Huyen Chu, Le Phuong Hoang, Phan Quang Thang, Lan Huong Nguyen, Trung Kien Hoang, and Huu-Tap Van (2025). Recycling paper sludge into hydrochar and ZnO nanocomposite for enhanced ammonium adsorption in aqueous solutions. RSC Advances, 15, 6634–6651. Link: (SCIE-indexed journal, Q1, IF: 4.6, H-index: 230).

(2) Thu Huong Nguyen, Trung Kien Hoang, Huu-Tap Van, and Thi Minh Phuong Nguyen (2026). Anaerobic pyrolysis of textile garment waste for the production of multifunctional than sinh hoc̣ : fuel performance and Pb(II) and  Cr(VI) adsorption with machine learning prediction. RSC Advances, 16, 9475–9499.

Link: (SCIE-indexed journal, Q1, IF: 4.6, H-index: 230).

Domestic journal article: One paper published in a Vietnamese scientific journal recognized by the State Professorial Council with a score of at least 0.75 points:

(1) Hoang Trung Kien, Van Huu Tap, Hoang Van Hung, Vi Thuy Linh, Nguyen Thi Bich Hanh, Nguyen Thi Mai Linh, Nguyen Thu Huong, Hoang Le Phuong, Van Huu Luong Nguyen, and Do Diep Anh (2025). Study on methylene blue removal using adsorbent materials fabricated from textile waste. TNU Journal of Science  and Technology, 230(14), 19–27. Link: (This journal was assigned 1.0 point by the Interdisciplinary Professorial Council for Construction – Architecture under Decision No. 26/QĐ-HĐGSNN dated July 11, 2025, of the State Professorial Council approving the list of scientific journals eligible for scoring in 2025, including Environmental Engineering).

5.2. Training products

Support for the training of one PhD candidate in the research direction of the project: PhD candidate Nguyen Thu Huong. Dissertation title: “Study on the treatment of heavy metals (Pb, Cd) and color in wastewater using adsorbent materials fabricated from textile industry waste.”

5.3. Applied products

- One laboratory-scale mini pyrolysis furnace model for converting textile waste and municipal solid waste into than sinh hoc̣.

- One process for treating textile waste and municipal solid waste using

circulating anaerobic pyrolysis technology to produce than sinh hoc under optimal

technical conditions, including waste composition, moisture content, optimal temperature, conversion time, and product quality.

- One report evaluating the application potential of the resulting  than sinh hoc̣  as a fuel for other production processes, as well as its economic, social, and environmental effectiveness.

6. Transfer method, application address, impacts and benefits of the research results

- Transfer method: Transfer of research results in the form of written documents, including reports and scientific publications.

- Application address: The project results will be transferred to the Learning Resource Center of Thai Nguyen University and the Library of the University of Sciences – Thai Nguyen University as reference materials for students, lecturers, and researchers interested in wastewater treatment research.

Impacts and benefits of the research results: The research outcomes provide clear scientific, practical, and environmental benefits, as evidenced by the successful development of a laboratory-scale circulating-gas pyrolysis furnace for converting textile waste and municipal solid waste into value-added than sinh hoc̣, along  with  the  production  of  than  sinh  hoc  materials  applicable  in  pollution treatment and energy use. The study demonstrated that difficult-to-manage solid waste can be converted through a waste-recycling approach, thereby helping to reduce the amount of waste sent to landfills or directly incinerated, while simultaneously generating useful secondary products. In terms of application, textile-waste-derived than sinh hoc̣ , particularly TVT600, showed good adsorption performance for Pb, Cr, NH4+ and methylene blue, while TVT800 exhibited a high calorific value, indicating potential use as a solid fuel substitute. This opens up the possibility of utilizing waste simultaneously for environmental remediation and energy recovery. From a social perspective, the results help orient a suitable solution for decentralized waste management in rural and small-scale settings, promote a circular economy approach, enhance the value of waste, and reduce pressure on centralized waste treatment systems. Environmentally, this research direction is meaningful because it not only reduces solid waste loads but also generates materials capable of treating contaminated water, while aligning with the growing role of than sinh hoc as a solution for reducing environmental impacts and utilizing stable carbon in waste management and pollution treatment.

Ban KHCN&ĐN