It mainly introduces the following aspects:

1. Project Introduction

The removal of high-concentration refractory organic matters in phenolic resin production wastewater is a difficult problem for current phenolic resin production plants and a difficult problem in the field of industrial wastewater treatment. Although there are currently many combined processes for phenolic wastewater treatment, they all have the characteristics of complex process operations and high operating costs. Therefore, how to develop a new phenolic wastewater treatment process with low investment and simple and easy operation while ensuring the treatment effect is a technical problem that needs to be solved urgently at present.

This project is based on improving the unsatisfactory effect of a single iron-carbon micro-electrolysis pretreatment process, combined with the current research on functional microorganisms under high concentrations of phenol and formaldehyde, this project plans to develop a new high-efficiency and low-cost phenolic wastewater treatment combined process, cultivate and enrich microorganisms degrade high-concentration phenolic aldehyde, introduce microorganisms into the iron-carbon micro-electrolysis pretreatment system, and establish a microbe-assisted iron-carbon micro-electrolysis-anaerobic treatment-aerobic treatment combined process.Through technical and economic analysis of the process, it not only improves the efficiency of phenolic wastewater treatment, but also reduces wastewater treatment costs for enterprises, thereby obtaining higher economic benefits.

2. Cooperation content

(1) Brief introduction of the main related technologies involved (mainly introduce the main technical contents involved in this project and other technologies that need to be supported)

In order to solve the technical problem that a single pretreatment method cannot meet the needs of subsequent biochemical tests in the phenolic wastewater treatment process, and the combined pretreatment process has limitations such as high running costs and complex operations, this project plans to combine microorganisms and chemical methods. Starting from the perspective of selecting iron-carbon microelectrolysis method, which is efficient, simple and easy to realize industrialization, is selected as the pretreatment method, and at the same time introducing microorganisms with specific functions, aiming to achieve mutual promotion between the two. Achieve higher conversion efficiency of refractory organic pollutants.

Relying solely on the micro-assisted iron-carbon micro-electrolysis pretreatment process cannot solve the problem of phenolic wastewater discharge up to standard, and the pretreated effluent needs to be subjected to biochemical treatment. This application project plans to adopt the anaerobic treatment-aerobic treatment method for biochemical treatment of organic matter. The anaerobic treatment usually used is UASB, and aerobic treatment is contact oxidation method. Based on the research team's previous research basis, a microbial electrolysis cell coupled anaerobic baffled reactor (MEC-ABR) technology has been developed to treat high-concentration organic wastewater. Although the addition of microbial electrolysis cells will increase the energy consumption of the anaerobic process, However, its efficient treatment of organic matter can be utilized to reduce the pressure of subsequent aerobic treatment and reduce the cost of aerobic treatment. Therefore, this project will build two combined processes: microbially assisted iron-carbon microelectrolysis-UASB-contact oxidation and microbially assisted iron-carbon microelectrolysis-MEC-ABR-contact oxidation, and conduct process debugging. Through comparison of operating efficiency and economic benefits, the optimal new process will be achieved., thus solving the current problems of complex and high operating costs for phenolic wastewater treatment combined process flow.

(2) Proposed cooperation areas and cooperation objects (mainly describe the areas and recipients of cooperation in the project)

Phenolic phenol production plant or phenolic wastewater treatment plant in Fujian Province.

(3) Proposed cooperation model (briefly introduce the future business model of the project and the cooperation model you hope to carry out)

The results of this project can be applied to the treatment of phenolic wastewater in actual phenolic production plants, and the cooperation methods can be technology transfer or technology licensing.

3. Cooperation cases (if there are demonstrations, applications, etc., available)

Currently, the relevant technology of this project is in the research and development stage, and there is no demonstration or application for the time being.

4. Project implementation unit (brief introduction of the main undertaking unit and cooperating unit of the project)

This project is mainly undertaken by the Institute of Urban Environment, China Academy of Sciences, and the cooperative unit is Xiamen Branch of Northern Engineering Design and Research Institute Co., Ltd.

The Institute of Urban Environment of China Academy of Sciences is a legal entity under the China Academy of Sciences. It is currently the only national research institution in the world specializing in comprehensive research on urban environment. It is located in the beautiful southern coastal city-Xiamen City. The institute currently has first-level doctoral and master's degree awarding sites in "Environmental Science and Engineering" and "Ecology" majors, as well as a "Environmental Science and Engineering" postdoctoral scientific research mobile station. The institute is oriented to major strategic needs such as ecological and environmental protection in the process of national urbanization development, to the development frontiers of international urban ecological science and environmental science and technology, and to carry out theoretical research, technology research and development, system integration and engineering demonstrations in urban ecology, environment and health, urban environmental governance and restoration technology, and environmental governance engineering. and circular economy, urban planning and environmental policy and other fields.