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A medical wastewater treatment process

A wastewater treatment and wastewater technology, applied in natural water treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of poor wastewater removal effect, low organic matter and ammonia nitrogen removal rate, high cost, and improve sludge Settling effect and dehydration performance, improving system resistance to poison shock, decolorization effect, and activity improvement effect

Active Publication Date: 2018-10-09
ZHEJIANG HUANYAO ENVIRONMENTAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the disadvantages of poor biodegradable wastewater removal effect, high cost, and low removal rate of organic matter and ammonia nitrogen in the prior art, and provides a medical wastewater treatment process with stable operation effect, low operation cost and high ammonia nitrogen removal rate

Method used

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  • A medical wastewater treatment process
  • A medical wastewater treatment process
  • A medical wastewater treatment process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Wastewater quality and quantity

[0024] 1. Design water volume: Q=3600m 3 / d

[0025] 2. Influent water quality is shown in Table 1

[0026] Table 1 Influent water quality

[0027]

[0028]

[0029] (2) A kind of medical wastewater treatment process, the specific influent water quality is as shown in table 1, specifically comprises the following steps:

[0030] Step 1, pretreatment: one of the 3-cyanopyridine wastewater, 3-aminopropanol wastewater, iohexol iodide wastewater, β-alanine wastewater, fermentation wastewater, calcium pantothenate wastewater and condensed water that needs to be treated Or any combination of Class A wastewater is mixed and pumped into the coagulation air flotation machine, and PAC and PAM are added to the water inlet pipeline through the coagulation dosing system. The mass ratio of PAC and PAM is 3:1. To remove grease, colloid and suspended solids, to ensure the stable operation of subsequent process facilities, the operating pa...

Embodiment 2

[0036] A medical wastewater treatment process, the specific influent water quality is shown in Table 1, specifically comprising the following steps:

[0037]Step 1, pretreatment: one of the 3-cyanopyridine wastewater, 3-aminopropanol wastewater, iohexol iodide wastewater, β-alanine wastewater, fermentation wastewater, calcium pantothenate wastewater and condensed water that needs to be treated Or any combination of Class A wastewater is mixed and pumped into the coagulation air flotation machine, and PAC and PAM are added to the water inlet pipeline through the coagulation dosing system. The mass ratio of PAC and PAM is 3:1. To remove grease, colloid and suspended solids, to ensure the stable operation of subsequent process facilities, the operating parameters of the coagulation air flotation machine are the operating load of 30m 3 / h, the flow rate of the dissolved air pump is 12.5m 3 / h, the reflux ratio of dissolved air pump water to air flotation inlet water is 40%, the p...

Embodiment 3

[0044] A medical wastewater treatment process, the specific influent water quality is shown in Table 1, specifically comprising the following steps:

[0045] Step 1, pretreatment: one of the 3-cyanopyridine wastewater, 3-aminopropanol wastewater, iohexol iodide wastewater, β-alanine wastewater, fermentation wastewater, calcium pantothenate wastewater and condensed water that needs to be treated Or any combination of Class A wastewater is mixed and pumped into the coagulation air flotation machine, and PAC and PAM are added to the water inlet pipeline through the coagulation dosing system. The mass ratio of PAC and PAM is 3:1. To remove grease, colloid and suspended solids, to ensure the stable operation of subsequent process facilities, the operating parameters of the coagulation air flotation machine are the operating load of 30m 3 / h, the flow rate of the dissolved air pump is 12.5m 3 / h, the water volume of the dissolved air pump and the reflux ratio of the air flotation i...

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Abstract

The invention relates to the technical field of wastewater treatment, and discloses a pharmaceutical wastewater treatment process which comprises steps: preforming wastewater pre-treatment and comprehensive treatment, pumping wastewater into a coagulation gas floatation clarifier, adding polyaluminum chloride and polyacrylamide in a water input pipeline through a coagulation medicine adding system, then enabling mixed wastewater to enter a three-phase catalytic oxidation tower, a coagulative precipitation tank, a pre-acidification pool, a thermoregulation pool, a UASB reaction pool and a combined type hydrolysis acidification pool sequentially, subjecting the mixed wastewater to hydrolysis acidification, enabling the wastewater to enter a primary A / O pool, a primary precipitation pool, a secondary A / O pool, a secondary precipitation pool, a Fenton oxidation pool and a tertiary precipitation pool sequentially, and discharging standard outlet water from a standard discharging opening. The process has the advantages of stable running effect, high ammonium-nitrogen removal rate, and low running cost, thereby being suitable for treatment of wastewater, which is refractory to degrade, in the pharmaceutical industry.

Description

technical field [0001] The present invention relates to the technical field of sewage treatment, in particular to a medical wastewater treatment process. Background technique [0002] Pharmaceutical industry wastewater refers to wastewater discharged from factories that manufacture antibiotics, antibiotics, antiserum, and organic and inorganic medicines. The volume and quality of wastewater vary according to the type of drugs produced, but the wastewater discharged from distillation and bottle washing is basically the same. Production wastewater such as antibiotics and antiserum generally contains toxic substances such as fluorine, cyanide, phenol, cresol and mercury compounds in addition to animal wastewater mainly composed of animal organs and vegetable wastewater mainly composed of herbal medicines. Biochemical oxygen demand (BOD), chemical oxygen demand (COD) and colloidal substances. Due to the high content of refractory organic matter, salt and ammonia nitrogen, medic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/30C02F101/16
CPCC02F1/24C02F1/281C02F1/283C02F1/5245C02F1/56C02F1/66C02F1/722C02F1/725C02F3/30C02F9/00C02F11/12C02F11/122C02F2101/16C02F2101/30C02F2103/343C02F2209/02C02F2209/06C02F2209/44C02F2301/046C02F2301/08C02F2303/10C02F2305/026C02F2305/06
Inventor 余保财宋旭沈滨孙晓岗张道锋
Owner ZHEJIANG HUANYAO ENVIRONMENTAL CONSTR
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