Water pollution has always been a worldwide environmental pollution problem. China needs to vigorously develop industry to drive economic development, and it is also hard to avoid a degree of negative impact on the environment, and one of the main environmental pollution issues is water pollution. According to the statistical analysis of the survey, there are currently about 130,000 domestic sewage treatment plants and more than 4,000 sewage treatment plants in cities and towns. The available water resources are increasingly in short supply.At present, the country has already realized the importance of environmental protection and strongly advocated that "lucid waters and lush mountains are better than gold and silver". It has also intensively issued relevant environmental protection policies, the national sewage discharge standards have been greatly improved, and the supervision has become increasingly strict.

At the current stage, the automatic control system of sewage treatment plants in traditional industries is mainly based on equipment control in the processing procedure, and the process control cannot be achieved; in the dosing procedure, manual experience determines the dosage, which not only results in wasted pharmaceutical costs, but also leads to fluctuations in effluent water quality; the control procedure is mainly based on on-site control management, and it is impossible to know the operating status online in real time.

Source water quality change and dosage analysis:

Traditional water industry	Actual situation
Water quality	The source water quality changes frequently, and the water parameters change irregularly.
Dosing methods	Based on a single parameter (such as flow) to estimate the drug dosage Manual dosing, based on industry experience of managers
Treatment effect	① Fluctuation of effluent quality ② Cannot achieve the best treatment effect ③ Increasing the dosing costs

Based on the industry's current situation & policy trends, we have developed intelligent products suitable for the dosing control process in water treatment plants:

1. Intelligent dosing robot

The intelligent dosing robot mainly relies on the intelligent control of all aspects of water treatment to achieve the best treatment process. Through online monitoring equipment data and mathematical model analysis, the process parameters of each procedure of the whole process of sewage treatment are controlled, and the process parameters of each procedure are intelligently adjusted according to the amount and quality of the influent and effluent. The dosage is reduced to minimum, and it also ensures the better and more stable effluent quality, achieving the aim to save dosing consumption, reduce energy consumption, improve automation control level, improve effluent quality and reduce the amount of sludge.

2. Water treatment intelligent control system

Water treatment intelligent control system is a new product invested and developed by Zhejiang Jec Electronic Co., Ltd. under the background of the country's vigorous promotion of ecological civilization construction. It is mainly dedicated to the automatic dosing control of various processes in the industry water treatment sites. It is a large-scale intelligent control, monitoring, analysis, processing industry water treatment controller which integrates hardware and software control, industrial PLC, remote, configuration software, etc. It includes online monitoring and control functions such as real-time water quality monitoring, equipment intelligent control. It is also equipped with intelligent functions such as authorization recognition, human-computer interaction, mobile control, and preview alarm. It can also be remotely controlled and managed through the Internet and cloud service platform.

We are committed to providing customers with intelligent, efficient, and convenient industrial water solutions, reducing operating costs, improving management level, and improving tail water quality, and truly achieving energy conservation, emission reduction, cost reduction, and efficiency improvement. The system has the following three advantages:

(1) Realize the automatic management and control of the sewage treatment process, save the manpower and material resources spent on site operations, reduce the dosage in the sewage treatment process (about 20% to 50%), and achieve continuous and stable effluent quality on the basis of making full use of the original facilities.

(2) Through real-time measurement and automatic adjustment, achieve the better dosing, effectively reduce redundant operation of equipment, save electrical energy, monitor and control various indicators online, and improve the automation level of sewage treatment facilities.

(3) Improve the safety of staff, make a foundation for further improving the level of safety production automation management, and establish a complete historical database and alarm event database to reduce the electricity and dosing costs in production and operation, provide a basis for failure analysis, and ensure the safe, reliable and economical operation of sewage treatment plants.

Category	Traditional treatment process	Intelligent water treatment process
Control process	Manual control, equipment control	Intelligent control, process control
Degree of refinement	Limited by experience, equipment, and extensive dosing	Self-learning, precise dosing
Operating efficiency	Low equipment utilization and fluctuating effluent quality	24*7 unattended, continuously  stabilize the effluent quality
Maintenance	Supporting data is incomplete and inaccurate	Reliable data support, equipped with visual management query platform
Safe production guarantee	Outside work, large security risks	Automatic alarm, remote preprocessing

Municipal sewage: Faced with the pressure of upgrading and reconstruction, the intelligent water treatment system provides high-quality solutions for municipal sewage treatment in terms of denitrification external carbon source, chemical phosphorus removal, disinfection and sterilization.

Industrial wastewater: For coking, printing and dyeing, papermaking, chemical and other industries, the wastewater composition is complex and the operating cost is high. Through this system, on the premise of ensuring stable effluent quality, a perfect unification of economic benefits and social benefits is realized.