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Last update 08 May 2025

Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

Private Company|1987|Guangdong Sheng, China|

www.gdnfhb.com.cn

Private Company|1987|Guangdong Sheng, China|

www.gdnfhb.com.cn

Last update 08 May 2025

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Translational Medicine

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100 Clinical Results associated with Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

0 Patents (Medical) associated with Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

Literatures (Medical) associated with Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

Zhongguo Jishui Paishui

Pilot start-up of active sand filter

Author: Wu, Yan-di ; Cao, Yang ; Luo, Yong-heng ; Yang, Hao-wen ; Chen, Zhi-ping

The secondary effluent from a sewage treatment plant met only the first level B national discharge standardTo meet the first level A national discharge standard, active sand filter was planned to be used.A pilot start-up experiment was carried out.The experiment conditions were as follows: the secondary effluent was raw wastewater, the treatment capacity was 6 m³/h, the filter velocity was 7.5 m/h, the blowdown flow rate of the sand wash water was 5% of the influent, and the sand circulation was 0.172 m³/h.The effluent concentrations of COD and SS were below 50 mg/L and 10 mg/L resp. after 18 d operation.The threat of the effluent quality on environmental biol. was evidently reduced.The experiment demonstrated a successful start-up of the active sand filter.

Zhongguo Jishui Paishui

Biological deodorization in printing and dyeing wastewater treatment plant

Author: Zheng, Li-shen ; Chen, Zhi-ping ; Yang, Hao-wen ; Wu, Yan-di ; Fang, Wei

To address typical odor from the printing and dyeing wastewater treatment plant, research on the purification technique in biotrickling filter was carried out.The influence of different media, temperatures, nutrients and other factors on the performance of the biotrickling filter was analyzed, and the appropriate process parameters were determinedThe exptl. results indicated that the maximum H₂S treatment load of the biotrickling filter was 50 g/(m³·h).When the influent H₂S concentration was less than 200 mg/m³, the removal rate could steadily reach at least 95%.Furthermore, the enzyme filter media were favorable for the attached growth of microorganisms and resistant to shock loading due to high sp. surface area.According to the adsorption-biofilm theory, the validity of the kinetic model for low-concentration H₂S degradation by the biotrickling filter was verified.

Zhongguo Jishui Paishui

Hybrid membrane bioreactor for treatment of aged landfill leachate

Author: Zhang, Xu ; Dai, Gendao ; Wang, Wei ; Li, Fei ; Song, Lanqun ; Zheng, Lishen ; Chen, Zhiping

The hybrid membrane bioreactor (HMBR) was used to treat aged landfill leachate.The results showed that when the ratio of B/C was less than 0.2, the process had better removal efficiency of pollutants, and the average removal rates of COD, NH₃-N and TN were 56.85% 98.43% and 63.2% resp., which was higher than the biol. contact oxidation process, in which the average removal rates of COD, NH₃-N and TN were 25.05%, 93.13% and 38.24% resp.The removal of COD was mainly concentrated in the anoxic zone and the membrane area, while the removal of NH₃-N was mainly concentrated in the anoxic zone and the aerobic zone.Owing to adding the fixed biomembrane bed, the stability of the biochem. treatment was enhanced.The concentration of sludge in HMBR was higher than that in conventional biochem. reactions, which played a greater role in the removal of NH₃-N.By setting up the individual membrane area, PVDF curtain membrane showed good anti-pollution performance.As a result, a lot of operating cost and maintenance cost are saved.

100 Deals associated with Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

100 Translational Medicine associated with Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

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Guangdong Nanfang Environmental Protection Bio-technology Co., Ltd.

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Pipeline Snapshot as of 08 Dec 2025

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Translational Medicine

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