According to Zibo Time and Space, August 13, 2015, on August 12, the "Protect the Mother River, Reporters Watch Water Control" press group visited the landscape garden construction of the Banyang River Basin, the main tributary of the Xiaofu River Basin in Zichuan District. Then visited Hongshan Town, Longquan Town and Zibo Guangtong Chemical Co., Ltd. to have a comprehensive and in-depth understanding of the comprehensive sewage treatment in the Xiaofu River Basin.
It is understood that there are four main problems in the Banyang River section within the jurisdiction of Hongshan Town. That is, there are multiple hidden dangers in the river. Some river dikes have low standards, serious river bed siltation, poor flood flow, and no guarantee for flood control and waterlogging control. The water quality of some river sections is seriously polluted, posing a threat to groundwater and the water quality of Xiaofu River. Seasonal shortage of water resources is serious. Due to serious river seepage in autumn, winter and spring, there are no ponds and dams for water storage. Some rivers are blocked by a large amount of accumulated garbage due to low annual water flow, it seriously affects the quality of life and living environment of the surrounding people and threatens the safety of groundwater at the same time. The Hongshan section of the river and the Hongshan community section are already within the planning scope of the main urban area and are close to Jiangjun Road. However, the river is overgrown with weeds, the river banks are washed and collapsed seriously, and the river landscape is poor, which cannot match the image of urban development. Second, there are hidden dangers of water pollution in enterprises. There are 17 key environmental protection enterprises in the town, including 3 cement enterprises, 1 thermal power enterprise, 3 ceramic construction enterprises, 8 refractory enterprises and 2 chemical enterprises. These enterprises all have hidden dangers of water pollution to varying degrees. Third, there is a phenomenon of rain and sewage mixed flow.

Zibo Guangtong Chemical Co., Ltd. is a high-tech enterprise integrating scientific research, development, production and operation. Since its establishment in 2001, the company has formed a development model with biochemicals, fine chemicals, and new materials as the main body, and the building materials industry as a sideline. The main products are nano-zirconia, structural ceramics and other zirconium series products, dibasic acid series products and Fine chemicals, etc.
It is understood that the company is the first enterprise in Longquan area that discharges wastewater into the urban pipe network. After being incorporated into the pipe network, another 30 million yuan was invested in upgrading the internal sewage system in 2010 to strictly divert rainwater and sewage. The wastewater generated in the enterprise enters Zichuan Limin Sewage Treatment Plant through the pipe network after being pretreated by the internal sewage treatment station to meet the standard, ensuring that the enterprise wastewater will not flow into the Panyang River.
In order to reduce the content of COD and ammonia nitrogen and ensure that the external drainage included in the pipe network meets the standard, the sewage treatment station of the company adopts the physicochemical method and the ZC-IB immobilized microorganism-biological aerated filter treatment process. The technology is a new type of sewage treatment technology with high-efficiency biological carrier, high-efficiency aeration system, high-efficiency microorganisms and biological enzymes as the core. It has the characteristics of fast processing speed, good processing effect, strong degradation ability and low operating cost. The company also cooperated with Shandong Tianwei Membrane Technology Co., Ltd. to introduce and use electrodialysis water treatment technology. Through internal independent technological innovation and process transformation, the wastewater recycling capacity has been greatly improved, and the water reuse rate has reached more than 45%. Energy saving and emission reduction work has reached a new level. At the same time, in accordance with the requirements of the superior installation of water online monitoring equipment, timely upload the relevant data of external drainage, so that external drainage timely dynamic monitoring. In 2012, the company built a 100m3 buffer pool and a 700m3 emergency pool according to the requirements of the superior environmental protection department, and installed an automatic switching solenoid valve in the water monitoring station. If the water quality exceeds the standard in the sewage pipe network in the factory area, the solenoid valve will automatically switch immediately, and the sewage exceeding the standard will be switched into the emergency pool by the emergency pump, and then the sewage will be returned to the sewage station by the emergency pump, and discharged into the urban pipe.