The main process block of the integrated treatment system of HDC waste water used in the line is a high-efficiency reaction and a high-efficiency flow filter: The high-efficiency reactor, as a reaction unit of the wastewater to be treated and the medicament, is equipped with a dry powder dosing machine, and is equipped with high-speed stirring at the same time, so that the desulfurization wastewater can fully react with the integrated high-efficiency adsorption flocculant. At this stage, most of the heavy metal ions, sulfur ions, fluoride ions and other control indicators through the role of chemicals, from dissolved to suspended, and quickly adsorbed flocculation to form primary alum. The high-efficiency cyclone clarifier is responsible for separating suspended solid matter and colloidal or suspended pollutants released from the water. Through systemic circulation and filtration bed technology of the equipment, the primary alum flowers are continuously flocculated to form alum flowers with faster sedimentation rate. Thirdly, through the shallow sedimentation technology and centrifugal separation technology, the alum is deposited continuously, forming a high concentration of sludge underflow. At the same time, the overflow clean water can be guaranteed to meet the discharge requirements. Beijing Huade Wastewater Treatment System uses an integrated water purificant, which can remove suspended solid matter, heavy metal ions, fluorides, sulfides and macromolecular organic pollutants through adsorption, complexation and flocculation. The reaction speed is fast, the dosage of medicament is small, and there is no secondary pollution. Compared with the traditional triplet process, the application of HDC integrated treatment system has significant advantages.
A. short process, small operating intensity, simple equipment composition, can completely replace the traditional (waste water flow station + triplet + decanter + decanter + decanter) system, The effluent index and anti-fluctuating capacity are much better than the traditional waste water treatment, and the tolerance of influent suspended solid matter can reach up to 12%. The distributed water treatment system is changed into the integrated and assemblable water treatment system, which is easy to install and construct, and is convenient to expand and enlarge the system. C. Only adding a single agent can solve the problem of excessive discharge of many pollutants in desulfurization wastewater, with simple operation, strong ability to resist water quality fluctuations, and small agent dosage, and the dosage of conventional wastewater agent is only 100-300g / m. D. agent plays a certain role in conditioning the sludges, increasing its hydrophobism, can be directly into the vacuum belt dewater machine for dewater operations, without separate supporting desliming equipment. After revamping and operation, the desulfurization waste water treatment capacity of Laibin Power Plant reaches 15t / h stably, and the effluent indexes meet the discharge criteria of desulfurization waste water of coal-fired power plant. The equipment runs reliably, and the system can realize unattended automatic operation. The difficult problem of desulphurization waste water treatment in power plant is solved, and the operation of productive technology is ensured.
