CN104724851A - Industrial heavy metal sewage treatment process - Google Patents

Abstract

The invention provides an industrial heavy metal sewage treatment process. The process comprises the following steps: preparing chemicals A, B and C firstly, and then starting a water suction pump to suck sewage from a regulating pool into a reaction tank A, meanwhile adding 10 L of chemical A into the sewage, mixing the mixture for 10 min, then pumping the mixture into a reaction tank B, starting a 'big' chemical tank transfer pump, adding the chemical B into the mixture, mixing the mixture for 15 min, then pumping the mixture into a reaction tank C, starting a 'small' chemical transfer pump, adding the chemical C into the mixture, and mixing the mixture for 15 min; opening a bottom release valve of the reaction tank C, transferring the liquid in the reaction tank C into a sedimentation tank, depositing the liquid for 2-3 hours and then pumping the liquid into a filter press for performing filter pressing operation. The treatment process provided by the invention is fast in treatment speed and good in running effect, and the stable effluent quality meets the standard.

Description

A kind of commercial metal sewage treatment process

Technical field

The present invention relates to sewage disposal, refer in particular to a kind of commercial metal sewage treatment process.

Background technology

Along with the development of modern society, sewage generation containing heavy metal ion is increasing, because heavy metal ion is difficult to degraded under field conditions (factors), it not only can to the environment such as water source, soil, and also finally can enter human body by the inrichment of food chain, thus HUMAN HEALTH is worked the mischief, therefore process is carried out to the sewage containing heavy metal ion and seem particularly important.Existing treatment unit or be import equipment, expensive, safeguard tired dimension, or homemade Simple treatment device poor processing effect, still bring disadvantageous effect to environment protection.

Summary of the invention

The object of the present invention is to provide that a kind of processing speed is fast, stable water outlet is up to standard, the commercial metal sewage treatment process that operating performance is good.

For achieving the above object, technical scheme provided by the present invention is: a kind of commercial metal sewage treatment process, and it includes following steps:

First step: make medicament A, B, C,

Wherein, each component mass parts of every hydrargyrum oxydatum crudum agent A is Containing Sulfur sodium (1%) 150 ~ 170mg/L, polyacrylamide 15 ~ 20mg/L, sodium lauryl sulphate 20 ~ 30mg/L, pine camphor oil 0.4 ~ 0.7mg/L add water and stir, for subsequent use;

The each component mass parts of every hydrargyrum oxydatum crudum agent B is calcium hydroxide 160 ~ 180mg/L, ironic hydroxide 50 ~ 70mg/L, polyacrylamide 35 ~ 50mg/L, sodium lauryl sulphate 30 ~ 40mg/L, oleic acid 0.4 ~ 0.6mg/L; First by " greatly " medicinal cupping injected clear water to " 1000 " scale place, start mixing pump in medicinal cupping, add the calcium hydroxide of respective quality part, ironic hydroxide, polyacrylamide, sodium lauryl sulphate, oleic acid; Add water to scale " 2000 " place again, stir 15 ~ 20 minutes, for subsequent use;

The each component mass parts of every hydrargyrum oxydatum crudum agent C is sodium sulphite 100 ~ 120mg/L, octyl-decyl ammonium acetate 80 ~ 90mg/L, sodium oleate 15 ~ 20mg/L, first by " little " medicinal cupping injected clear water to " 1000 " scale place, start mixing pump in medicinal cupping, add the sodium sulphite of respective quality part, octyl-decyl ammonium acetate, sodium oleate; Add water to scale " 2000 " place, stir 15 ~ 25 minutes, for subsequent use;

Second step: start water suction pump, by equalizing tank waste water sucting reaction tank A, add 10 liters of A preparations simultaneously, stir 10 minutes;

Third step: the waste water after stirring in retort A is evacuated in retort B, starts " greatly " medicinal cupping transferpump, adds medicament B, stir 15 minutes;

4th step: the water after stirring in retort B is evacuated in retort C, starts " little " medicinal cupping transferpump, add medicament C, stir 15 minutes;

5th step: the end valve opening retort C, by Liquid transfer in retort C to settling tank precipitation 2-3 hour;

6th step: settling tank upper clear supernate is directly discharged and entered clean water basin; Base sludge is pumped and is carried out desilt to pressure filter, and the clear water after desilt enters clean water basin, and mud cake collects otherwise processed;

7th step: its every water-quality guideline is inspected by random samples to the water in clean water basin, qualified rear direct discharge up to standard or reuse.

This programme has been captured in trade effluent and has been processed various heavy simultaneously, prevent multiple difficult problem such as secondary pollution in water treatment procedure, and the treatment time is short, and efficiency is high, and water outlet heavy metal content, far below standard limited value, does not produce secondary pollution.Water quality indices after process reaches first discharge standard in country " integrated wastewater discharge standard " (GB8978-1996).

Accompanying drawing explanation

Fig. 1 is sewage disposal schematic diagram of the present invention.

Embodiment

Below in conjunction with institute's drawings attached, the invention will be further described, and preferred embodiment of the present invention is: see accompanying drawing 1, and the commercial metal sewage treatment process described in the present embodiment, is characterized in that: it includes following steps:

First step: make medicament A, B, C,

Wherein, each component mass parts of every hydrargyrum oxydatum crudum agent A is Containing Sulfur sodium (1%) 150mg/L, polyacrylamide 15mg/L, sodium lauryl sulphate 30mg/L, pine camphor oil 0.4mg/L add water and stir, for subsequent use;

The each component mass parts of every hydrargyrum oxydatum crudum agent B is calcium hydroxide 160mg/L, ironic hydroxide 50mg/L, polyacrylamide 35mg/L, sodium lauryl sulphate 30mg/L, oleic acid 0.4mg/L; First by " greatly " medicinal cupping injected clear water to " 1000 " scale place, start mixing pump in medicinal cupping, add the calcium hydroxide of respective quality part, ironic hydroxide, polyacrylamide, sodium lauryl sulphate, oleic acid; Add water to scale " 2000 " place again, stir 15 ~ 20 minutes, for subsequent use;

The each component mass parts of every hydrargyrum oxydatum crudum agent C is sodium sulphite 100mg/L, octyl-decyl ammonium acetate 80mg/L, sodium oleate 15mg/L, first by " little " medicinal cupping injected clear water to " 1000 " scale place, start mixing pump in medicinal cupping, add the sodium sulphite of respective quality part, octyl-decyl ammonium acetate, sodium oleate; Add water to scale " 2000 " place, stir 15 ~ 25 minutes, for subsequent use;

Second step: start water suction pump, by equalizing tank waste water sucting reaction tank A, add 10 liters of A preparations simultaneously, stir 10 minutes,

Third step: the waste water after stirring in retort A is evacuated in retort B, starts " greatly " medicinal cupping transferpump, adds medicament B, stir 15 minutes;

4th step: the water after stirring in retort B is evacuated in retort C, starts " little " medicinal cupping transferpump, add medicament C, stir 15 minutes;

5th step: the end valve opening retort C, by Liquid transfer in retort C to settling tank precipitation 2-3 hour;

6th step: settling tank upper clear supernate is directly discharged and entered clean water basin; Base sludge is pumped and is carried out desilt to pressure filter, and the clear water after desilt enters clean water basin, and mud cake collects otherwise processed; Should check before filtration filter cloth and filter plate fluid hole whether unobstructed, whether filter cloth smooth, has corrugationless.Wherein, filter cloth is 260 orders, and area is 180 squares, and flux is 312.5L/m3.h;

7th step: inspect its every water-quality guideline by random samples to the water in clean water basin, during detection, first discharges water about about 1 minute, ponding of draining.After rinsing sampling jug and bottle cap three times with sampling jug water receiving, by bottleneck alignment tube saliva stream, make water flow directly in bottle, sampling jug being filled water (about 3/4 body place, so that can shake well mixing water sample when checking), covering tightly bottle cap; Close sampling valve.Qualified rear direct discharge up to standard or reuse.

Claims (1)

1. a commercial metal sewage treatment process, is characterized in that: it includes following steps:

First step: make medicament A, B, C,

Wherein, each component mass parts of every hydrargyrum oxydatum crudum agent A is Containing Sulfur sodium (1%) 150 ~ 170mg/L, polyacrylamide 15 ~ 20mg/L, sodium lauryl sulphate 20 ~ 30mg/L, pine camphor oil 0.4 ~ 0.7mg/L add water and stir, for subsequent use;

The each component mass parts of every hydrargyrum oxydatum crudum agent B is calcium hydroxide 160 ~ 180mg/L, ironic hydroxide 50 ~ 70mg/L, polyacrylamide 35 ~ 50mg/L, sodium lauryl sulphate 30 ~ 40mg/L, oleic acid 0.4 ~ 0.6mg/L; First by " greatly " medicinal cupping injected clear water to " 1000 " scale place, start mixing pump in medicinal cupping, add the calcium hydroxide of respective quality part, ironic hydroxide, polyacrylamide, sodium lauryl sulphate, oleic acid; Add water to scale " 2000 " place again, stir 15 ~ 20 minutes, for subsequent use;

The each component mass parts of every hydrargyrum oxydatum crudum agent C is sodium sulphite 100 ~ 120mg/L, octyl-decyl ammonium acetate 80 ~ 90mg/L, sodium oleate 15 ~ 20mg/L, first by " little " medicinal cupping injected clear water to " 1000 " scale place, start mixing pump in medicinal cupping, add the sodium sulphite of respective quality part, octyl-decyl ammonium acetate, sodium oleate; Add water to scale " 2000 " place, stir 15 ~ 25 minutes, for subsequent use;

Second step: start water suction pump, by equalizing tank waste water sucting reaction tank A, add 10 liters of A preparations simultaneously, stir 10 minutes,

Third step: the waste water after stirring in retort A is evacuated in retort B, starts " greatly " medicinal cupping transferpump, adds medicament B, stir 15 minutes;

4th step: the water after stirring in retort B is evacuated in retort C, starts " little " medicinal cupping transferpump, add medicament C, stir 15 minutes;

5th step: the end valve opening retort C, by Liquid transfer in retort C to settling tank precipitation 2-3 hour;

6th step: settling tank upper clear supernate is directly discharged and entered clean water basin; Base sludge is pumped and is carried out desilt to pressure filter, and the clear water after desilt enters clean water basin, and mud cake collects otherwise processed;

7th step: its every water-quality guideline is inspected by random samples to the water in clean water basin, qualified rear direct discharge up to standard or reuse.