Treatment method for wastewater with high ammonia nitrogen content

A technology for wastewater treatment and high ammonia nitrogen, which is applied in multi-stage water treatment, biological water/sewage treatment, light water/sewage treatment, etc. Nitrogen sensitivity and other problems, to achieve the effect of good effluent quality, superior denitrification effect, and stable effluent quality

Inactive Publication Date: 2019-09-10
深圳市臻鼎环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the nitrogen in the actual wastewater is often dominated by ammonia nitrogen, and the acquisition of nitrite nitrogen in the anammox process still requires forced aeration to achieve short-range nitrification, resulting in high operating costs; the anammox reaction will have Partial nitrate nitrogen is generated, and complete denitrification cannot be achieved; at the same time, the

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  • Treatment method for wastewater with high ammonia nitrogen content
  • Treatment method for wastewater with high ammonia nitrogen content

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Effect test

Embodiment 1

[0041] Combine below figure 1 A kind of high ammonia nitrogen wastewater treatment method of the present invention is specifically described, a kind of high ammonia nitrogen wastewater treatment method of the present invention comprises the following steps:

[0042] S1. Adsorb copper ions to adjust the pH of the high ammonia nitrogen wastewater to be treated to 5.25, then flow the high ammonia nitrogen wastewater to be treated into a resin column through a self-suction pipe, and the resin column adsorbs copper ions to obtain ammonia nitrogen content of 1500 mg / L and CODcr content It is 200mg / L primary treatment of high ammonia nitrogen wastewater, in which the resin column is filled with LSC-100 resin, and the copper ions adsorbed in the resin column are pickled with sulfuric acid to regenerate the resin filled in the resin column to regenerate copper sulfate, and then electrolyze copper sulfate to generate metal Copper, metal copper recycling;

[0043] S2. Regulating pond ad...

Embodiment 2

[0063] Combine below figure 1 A kind of high ammonia nitrogen wastewater treatment method of the present invention is specifically described, a kind of high ammonia nitrogen wastewater treatment method of the present invention comprises the following steps:

[0064] S1. Adsorb copper ions: adjust the pH of the high ammonia nitrogen wastewater to be treated to be 5, then flow the high ammonia nitrogen wastewater to be treated into a resin column through a self-suction pipe, and the resin column adsorbs copper ions to obtain ammonia nitrogen content of 1000mg / L, CODcr The first-stage treatment of high ammonia nitrogen wastewater with a content of 150mg / L, in which the resin column is filled with LSC-930 resin, the copper ions adsorbed in the resin column are pickled with sulfuric acid to regenerate the resin filled in the resin column to regenerate copper sulfate, and then electrolyze copper sulfate to generate Copper metal, copper recycling.

[0065] S2. Regulating pond adjust...

Embodiment 3

[0083] Combine below figure 1 A kind of high ammonia nitrogen wastewater treatment method of the present invention is specifically described, a kind of high ammonia nitrogen wastewater treatment method of the present invention comprises the following steps:

[0084] S1. adjust the pH of the high ammonia nitrogen wastewater to be treated to be 5.5, then the high ammonia nitrogen wastewater to be treated flows into the resin column through the suction pipe, and the resin column absorbs copper ions, so that the ammonia nitrogen content is 2000mg / L, and the CODcr content is 200mg / L. L’s primary treatment of high ammonia nitrogen wastewater, in which the resin column is filled with LSC-930 resin, the copper ions adsorbed in the resin column are pickled with sulfuric acid to regenerate the resin filled in the resin column to regenerate copper sulfate, and then the copper sulfate is electrolyzed to generate metallic copper.

[0085] S2. Regulating pond adjustment: the primary treatme...

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Abstract

The invention provides a treatment method for wastewater with high ammonia nitrogen content. According to the invention, after copper ions in the wastewater with high ammonia nitrogen content are adsorbed, obtained wastewater is converged to enter an adjusting pool; the amount and quality of the wastewater are adjusted in the adjusting pool; adjusted wastewater in the adjusting pool is lifted to amembrane treatment system through a lift pump, and then quantitatively pumped to an anoxic pool through a metering pump; a denitrification site is provided; an aeration tray is arranged in the anoxicpool to avoid sludge from sedimentation; a mixed solution in the anoxic pool automatically flows into MBBR which provides a nitrification-denitrification site; effluent of the MBBR automatically flows into an FMBR membrane pool for solid-liquid separation of a large amount of suspended solids; nitrogen is removed through the following three ways in an FMBR treatment process: 1) nitrification-denitrification, 2) short-range nitrification-denitrification, and 3) anaerobic ammonia oxidation; sludge remaining in the FMBR membrane pool is discharged to a sludge pool; after sludge is treated through a submerged air blower pool, treated sludge is discharged to a comprehensive pool for further treatment; thus, the removal rate of ammonia nitrogen reaches 99% or above, and high treatment efficiency and good effluent water quality are achieved; equipment is compact and occupies small land area; and automatic control is easily realized, and operation management is simple.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a method for treating high ammonia nitrogen wastewater. Background technique [0002] The main source of high-concentration ammonia-nitrogen wastewater is wastewater discharged from PCB circuit industry, printing, steel, feed, coking, pharmaceutical, fertilizer, petrochemical, breeding, glass manufacturing and other industries. In addition, sewage released in people's daily production and life, animal excrement, Garbage permeate and agricultural wastewater, as shown in Table 1, are the ammonia nitrogen content of various factory wastewater. [0003] [0004] A large amount of excess sludge will be produced in the process of sewage treatment, and the cost of treatment and disposal of excess sludge accounts for 25-65% of the sewage treatment, which is very expensive. But at the same time, the main components in the remaining sludge are microorganisms, wh...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/16C02F101/30
CPCC02F1/32C02F1/42C02F1/52C02F3/302C02F9/00C02F2101/16C02F2101/30C02F2301/08C02F2303/04
Inventor 朱识芝邓景永吴永刚曾媛媛伍必青李兆国
Owner 深圳市臻鼎环保科技有限公司
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