17 Lead Acid Storage Batteries and Lead Recycling Enterprises in Shanghai Have Closed 14

As of September 23, 14 of 17 lead-acid storage batteries and lead recycling companies in Shanghai have stopped production for rectification, and Shanghai's relevant industrial structure adjustment policies are being researched and formulated simultaneously.

According to reports, the Shanghai Municipal Environmental Protection Bureau has organized law enforcement and supervision departments to conduct surprise inspections in the past few days. In this regard, 17 lead storage batteries and lead recycling enterprises have conducted comprehensive supervision and monitoring. In addition to establishing dynamic monitoring files, they have also applied relevant standards to the most stringent standards. Daily environmental supervision, and resolutely put an end to the illegal resumption of production of discontinued companies.

Shanghai attaches great importance to cases of children with blood lead exceeding the standard in Kangqiao, Pudong. According to a report released by the Shanghai Pudong New Area on environmental protection, health and other related departments on the 22nd, a total of 1115 blood lead tests have been conducted on children in Kangqiao, 32 people have been diagnosed with blood lead exceeding the threshold, 15 of whom required hospitalization, and 8 have completed the first one. The treatment was discharged after treatment and 7 were undergoing hospitalization. The other 17 patients needed outpatient treatment. In addition to one person still in the field, the others had been treated outpatiently. According to the expert's assessment, Shanghai Johnson Controls International Battery Co., Ltd. and Kangqiao Huaqiang Children's Blood lead exceeded.

It is understood that Shanghai Johnson Controls International Battery Co., Ltd. has been ordered by the environmental protection department to suspend production. There is no plan for resumption of work in the near future.

Shanghai Environmental Protection Agency stated that the environmental protection departments at both the listed and district levels in Shanghai will continue to strengthen the further investigation of lead storage batteries and lead recycling companies to ensure that all types of lead-related companies will be included in the scope of supervision, and that relevant enterprises will be implemented to stop production.

EPON LAN PORT ONU

The ONU has two functions: it selectively receives the broadcast sent by the OLT, and responds to the OLT if the data needs to be received; collects and buffers the Ethernet data that the user needs to send, and sends it to the OLT according to the assigned sending window The end sends the buffered data.
The application of ONU can effectively improve the uplink bandwidth utilization of the entire system, and it can also configure the channel bandwidth according to the network application environment and applicable service characteristics to carry as many end users as possible without affecting the communication efficiency and communication quality, and improve the network utilization Rate and reduce user costs.
The concept of Passive Optical Network (PON) has a long history. It has the characteristics of saving optical fiber resources and being transparent to network protocols, and it plays an increasingly important role in optical access networks. At the same time, after 20 years of development, Ethernet technology has almost completely dominated the local area network with its simple, practical, and low-cost characteristics, and in fact has been proved to be the best carrier for carrying IP data packets. As the proportion of IP services in metro and trunk transmission continues to rise, Ethernet is also gradually penetrating access, metro and even backbone networks through improvements in transmission rate and manageability. The combination of Ethernet and PON resulted in the Ethernet Passive Optical Network (EPON). It has the advantages of Ethernet and PON at the same time, and is becoming a popular technology in the field of optical access networks.
EPON is a kind of emerging broadband access technology. It realizes integrated service access of data, voice and video through a single optical fiber access system, and has good economic efficiency. The industry generally believes that FTTH is the ultimate solution for broadband access, and EPON will also become a mainstream broadband access technology. Due to the characteristics of the EPON network structure, the special advantages of broadband access to the home, and the natural organic combination with computer networks, experts all over the world agree that passive optical network is the realization of "three networks in one" and the solution to the information highway The best transmission medium for the "last mile".

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