MindMap Gallery water pollution control technology
This is a mind map about water pollution control technology. The main content includes: biological treatment method, physical and chemical treatment method, chemical treatment method, and physical treatment method.
Edited at 2024-11-02 18:20:13This is a mind map about the annual work plan of the three pillars of human resources. The main contents include: strategic human resources planning, talent recruitment and allocation, employee performance management, employee training and development, employee relationships and communication, employee welfare and care, human resources information system construction, regulatory compliance and risk management, and organizational culture construction.
This is a mind map for the diagnosis and treatment of acute cerebral hemorrhage in patients with hemodialysis. The annual incidence of acute cerebral hemorrhage in patients with hemodialysis is (3.0~10.3)/1000, and the main cause is hypertension. Compared with non-dialysis patients, the most common bleeding site is the basal ganglia area, accounting for 50% to 80%; but the bleeding volume is large and the prognosis is poor, and the mortality rate is 27% to 83%. Especially for patients with hematoma >50ml, hematoma enlarged or ventricular hemorrhage on the second day after onset, the prognosis is very poor.
The logic is clear and the content is rich, covering many aspects of the information technology field. Provides a clear framework and guidance for learning and improving information technology capabilities.
This is a mind map about the annual work plan of the three pillars of human resources. The main contents include: strategic human resources planning, talent recruitment and allocation, employee performance management, employee training and development, employee relationships and communication, employee welfare and care, human resources information system construction, regulatory compliance and risk management, and organizational culture construction.
This is a mind map for the diagnosis and treatment of acute cerebral hemorrhage in patients with hemodialysis. The annual incidence of acute cerebral hemorrhage in patients with hemodialysis is (3.0~10.3)/1000, and the main cause is hypertension. Compared with non-dialysis patients, the most common bleeding site is the basal ganglia area, accounting for 50% to 80%; but the bleeding volume is large and the prognosis is poor, and the mortality rate is 27% to 83%. Especially for patients with hematoma >50ml, hematoma enlarged or ventricular hemorrhage on the second day after onset, the prognosis is very poor.
The logic is clear and the content is rich, covering many aspects of the information technology field. Provides a clear framework and guidance for learning and improving information technology capabilities.
water pollution control technology
1. physical treatment method
Applicable objects: Insoluble pollutants in suspended state in water
Sieve interception method
1. grille
2. Screen
3. Cloth filter equipment
4. Sand filter equipment
Gravity separation (i.e. sedimentation) method
1. sedimentation tank
2. grit tank
3. Oiling pool
flotation
Often used for fine particles whose particle density is close to or smaller than water
Is an effective solid-liquid and liquid-liquid separation method
Centrifugal separation
1. Hydrocyclone separator
2. centrifuge
2. chemical treatment
Applicable objects: pollutants in dissolved or colloidal state in water
coagulation
Treat tiny suspended solids and colloids in wastewater
Commonly used coagulants: Al2(SO4)3, basic aluminum chloride, iron salts (mainly Fe2(SO4)3, FeSO4, FeCl3), etc.
Chemical precipitation method
Commonly used to treat wastewater containing toxic compounds such as Hg, Pb, Cu, Zn, S, F, etc.
neutralization method
alkaline wastewater
Neutralize alkaline wastewater to achieve the purpose
Acidic wastewater
Neutralization of acidic wastewater
Neutralize with acid
redox method
chemical oxidation method
Pharmaceutical reduction method
Commonly used oxidants: air, O2, O3, Cl2, bleaching powder, NaClO, FeCl3, etc.
3. Physics and Chemistry Physics
Applicable objects: industrial wastewater
Ion exchange method
Used to treat wastewater generated from various metal surface processing
Borrow ion exchanger
Inorganic
organic matter
Extraction method
Add solvents that are insoluble or poorly soluble in water
Used to treat industrial wastewater containing higher concentrations of phenol or aniline, benzene, acetic acid, etc.
membrane separation
electrodialysis
reverse dialysis
Ultrafiltration
Microfiltration
Also called microporous filtration
4. biological treatment
Applicable objects: organic matter in dissolved or colloidal state in water
aerobic biological treatment
activated sludge process
biofilm method
Oxidation pond method
Anaerobic Biological Treatment
facultative anaerobic bacteria
obligate anaerobic bacteria