Anaerobic digestion device and application thereof to treating organic wastewater

An anaerobic digestion and wastewater technology, which is applied in anaerobic digestion treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of poor treatment effect and unstable process of high organic load wastewater. Achieve the effect of facilitating quick start and efficient treatment, saving the cost of acid and alkali chemicals, and improving the quality of the influent water

Pending Publication Date: 2019-04-23
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an anaerobic digestion device for the deficiencies of the prior art, so as to solve the problems of the pr

Method used

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  • Anaerobic digestion device and application thereof to treating organic wastewater
  • Anaerobic digestion device and application thereof to treating organic wastewater
  • Anaerobic digestion device and application thereof to treating organic wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like figure 1 As shown, in this implementation, the anaerobic digestion device includes a first reactor 1 and a second reactor 2 connected in series in series; the first reactor 1 and the second reactor 2 both include an upper reaction zone and a lower reaction zone , a three-phase separator is provided in the upper reaction zone;

[0046] The bottom of the first reactor 1 is provided with a water inlet pipe 13, and the water inlet flow rate is controlled by the water inlet pump 11; the inside of the first reaction zone 1 is divided into two functional areas of the hydrolytic acidification area 4 and the anaerobic digestion area 3, and the two functional areas Separated by an overflow channel, the overflow channel communicates with the top of the hydrolysis acidification zone 4 and the bottom of the anaerobic digestion zone 3, the water inlet pipe 13 enters water from the bottom of the hydrolysis acidification zone 4, and then overflows from the top of the hydrolysis ac...

Embodiment 2

[0056] In the present embodiment, the anaerobic digestion device has the same structure as that of Embodiment 1, but on the basis of Embodiment 1, the three-phase separator 5 in the upper reaction zone of the first reactor 1 passes through the gas pipeline 10 above and the hydrolytic acidification zone 4 The bottom is connected, and the end of the gas pipeline 10 located in the hydrolytic acidification zone 4 is provided with a microporous aeration pan 9; the top of the hydrolysis acidification zone 4 is provided with an exhaust port 19; the biogas produced by anaerobic digestion is separated and passed through three The gas pipeline 10 above the phase separator 5 enters the hydrolysis and acidification zone 4, and the inside of the hydrolysis and acidification zone is provided with a microporous aeration pan 9, and the gas passes through the microporous aeration pan 9 to form tiny bubbles, fully agitating the hydrolysis and acidification zone 4, increasing The degree of solid-...

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Abstract

The invention discloses an anaerobic digestion device and application thereof to treating organic wastewater. The anaerobic digestion device comprises a first reactor and a second reactor which are different in size and are sequentially connected in series; the first reactor is divided into a hydrolytic acidification functional area and an anaerobic digestion functional area, which are connected in an overflow manner; the bottom of the first reactor is provided with a water inlet pipe, and inflow speed is controlled by a water inlet pump; the upper side wall of the anaerobic digestion functional area of the first reactor is provided with a reflux pipe and connected with the bottom water inlet pipe of the hydrolytic acidification functional area of the first reactor, and the reflux speed iscontrolled by a reflux pump; the overflow port of the upper reaction area of the first reactor is connected with the bottom water inlet pipe of the second reactor, wastewater processed by the first reactor flows into the second reactor for reprocessing and is then discharged out of the water outlet of the upper reaction area of the second reactor. The anaerobic digestion device is high in processstaring speed, impact resistance and processing efficiency and low in processing cost.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an anaerobic digestion device and its application in treating organic waste water. Background technique [0002] With the increasing shortage of energy in the world and the increasing complexity of wastewater pollution load and pollutant types in wastewater, wastewater anaerobic biological treatment technology is characterized by low investment, low energy consumption, recyclable biogas energy, high load, less mud production, Many advantages such as impact load resistance have once again attracted the attention of people in the environmental protection circles. [0003] The biological treatment of wastewater takes organic matter as the decomposition object, which is carried in the metabolic process of microorganisms to obtain simple molecular inorganic matter, so as to remove organic pollution in sewage. Various anaerobic treatment processes are common in nature, also...

Claims

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Application Information

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IPC IPC(8): C02F3/28C02F101/30
CPCC02F3/2866C02F2101/30
Inventor 应汉杰朱杰陈勇刘桂文甘诚刘庆国赵南邹亚男
Owner NANJING UNIV OF TECH
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