1.Sewage from highly concentrated solid domestic trash
Origin: Once domestic trash buries and presses dregs, this collection process produce high consistency of sewage. This kind of sewage seem not difficult to process, but in fact process it is very troublesome. Fat is the major substance within these domestic trashes. Fat fermentation fatty acid, all in all the COD and BOD level is exteremely high. When dealing with fatty acid, some cities must dose medicine process in several circulations before it decompose. Our company had produced a highly effective purifying agent simply one dose of medicine process.

 

2. Sewage from Printry Industry
Sewage Characteristic: High Chromaticity, starch-kind substance, hydro tactic printing ink, high COD with the existence of organic solvent.
Our solution to this kind of sewage: First, determine the PH Value, PH in 7.7 meets the technical condition, drop in the medication (our product suitable for multi-types of sewage) wait for 2 minutes, then adds flocculants (flocculant quickly prodce a big cotton wool type flower, a good sign of effect) stop agitation for 2 minutes, after (join flocculant, do not stir as it affects to flocculation, nor overload flocculant as result of cost increase) may quickly seen impurity separate from moisture (printing ink starch at the bottom with some starch type aerosol in the upper formation of the water, to sink these aerosol is relatively difficult as these starch is similar with water density, but it does not affect the water quality. Finally filter the residue, and the supernatant can be reuse or simply omission, these processed water achieve the national omission standard. COD able to control within 50 �C 55 mg/L, BOD below 60mg/ L, as see these liquid transparent from original dark blue to clarifies water in a very short and efficient manner.

 

3. Sewage from recycle plastic
These type of sewage produce during the process of recycling plastic material,(i.e. plastic bottle, plastic film) because these plastic contain complex ingredient, rich in carbohydrate, and carbohydrate fermentation produces fatty acid and so on, cause the complexity of these sewage treatment. Within this sewage include massive SS (suspended solid), after regular sewage process, these liquid heavily pollute farmlands and river. Our environmental protection department slowly aware to these type of sewage and we must have a standard and unification process. To the small enterprise, our solution is the provide medicine to process with a complete sets of handling equipment. To solve these matter technically. Our idea is base on some of the successful scenario occurred in the United States, its characteristic is little investment, little medication but enough to satisfy small business need in processing waste water.

Start with measure the PH value, 11.0 PH value of alkalinity detected, reduce its PH value to 8 with highly effective multi-purpose medicine (There is a PH installment for automatic adjustment in real practice), add flocculant, then re-measure if the PH value reduce to 6 -9, and now is 4PH value, add more alkalinity ( actual product had automatic PH installment control, not as troublesome as in experiment) Stop stirring and wait for another 2 minutes, flocculent and precipitate present (the bigger trash eliminate) as can see trash occupied over 80% amount water, after subsidence, foreign inclusion is very high, it can heavily pollute the environment if these water omission without any kind of process. In comparison to clear water these kind of sewage had high volume ratio of impurity, as can seen the trash content is high, these type of highly concentrated sewage can be seen directly. We have a better understand in dealing with these type of sewage, trash must be clear from sewage surface can by machine, (in lab we clear by hand) if this process not done properly, one must replace filter instantly and cost increase. Because this kind of sewage had high density, if the first process not turns well, it might again repeat the same process, the step of technical process is consistence: adjust to PH value > give does of medication > increase flocculent > flocculant precipitate > revise the PH value > settlement subsidence > filtration. First process diminish thick pollutant, second process reduce small impurity substance. Emission standard can be achieved after the two processes.
 
4. Sewage from galvanization
The galvanization sewage disposal has been a difficult topic, major cooperation divided pond for omission processing but for medium & small enterprise mixed processing is greatly difficult. As national environment continues to develop, the national galvanization sewage emission standard is getting higher and higher, how can medium & small enterprise achieve these new standard? We had researches and develop a heavy metal cleaner aims at galvanization industry specially the medium & small enterprise that unable to divided pond process. The result was great and stable. The galvanization sewage mixes with heavy ion: copper, zinc, chromium, after our medication process, the sewage can definitely achieve the national emission standard.

Our medicament characteristic is processing quickly with great outcome and able to simultaneously processing heavy metal and COD.

Lets determine the PH value, galvanization commonly clean with acid, and our medication can reduce the PH value to 8 �C 9, the medium & small enterprise process these sewage generally to PH 10 �C 11, even PH 13, from this aspect the cost have greatly reduce. To process these sewage one must adjust the PH value first, the actual processing can be achieve with machine, unlike experiment require medication according to metallic ion density. Give does of medicine between 800PPM �C 1500PPM, as the heavy metal response in a long time, however most enterprise has aerator, not only can enlarge the medicine contact area to speed up the reaction time can also reduce the dose in use. Add some industrial salt, the salt benefit the process of heavy metal greatly, add around 300 �C 400 PPM, wait a moment then inspect the PH value, target the national emission standard, PH Value 5 is low, control the PH value to 6 is good as global code��s PH value is 6 �C 9, then add flocculant, its density is about 1%, stop agitation, subsidence dividing into layer, it��s chromaticity is essential as it compose of heavy metal content, of the heavy metal content solve, emission standards can be achieve, the heavy metal polymerize within the medicine, carried on the filtration,  bated the small impurity, these water can be reuse in vehicle workshop.

 

5. Metal cleaning agent sewage disposal
Sewage characteristic: Greasy dirt from washing metal, rust, strong acidity, minor chromaticity, people not taken too seriously, hard to be seen and impact the environment greatly.
Determine the PH value 2 �C 6 as strong acid, adjust the PH value, produces the complex compound under the acidic condition, no color appears,  after alkalizing, the complex compound lost balance with dark color, PH between 6 �C 9, then add medicine dose in process, wait for 2 �C 3 minutes, join the flocculant, re-examine the PH value, the PH value past 4, revise immediately the global code PH value 6 -9, supplement the right amount of flocculant, stop agitation, because the impurity is small, after the medication process, the subsidence process can be seen slowly, but the COD content is still high, the filtration craft process must be slow, if too fast may carry off the small impurity and this is not the best effect. As these pellet tiny degree very close to the water density, after filtration ,may see the metal cleaning agent, these small impurity cannot be seen from eye normally, but though medicine processing, it can be seen discernibly. Finally carry on with the filtration, squeezes again may remove these impurities, after filtration, these water is perfectly clear for reuse or emission

 

6. Cow leather sewage
Cow leather processing industry is very common in Guangdong, pollution level is high, National Environment Protection Bureau treated this issue quite seriously.  Fatty acid within these sewage and coloring principle is very heavy, thus causes high density in these sewage.
Determine the PH value first, it��s PH value is 5.0, the meta �Cacid, 6.0 may give dose of medicine, wait for 3 minutes then add flocculant to before the PH value to 6.0 �C 9.0, to speed up the process add some salts, but the guarantee the PH value in 6.0 �C 9.0 stop the agitation, settlement subsidence , water and small impurity divided into 2/3 after dregs, the water content elevate, but the impurity remain high, upper formation is the clear water, basic these sewage can be release for emission, after filtration these water remain limpid, if pigment cannot take off, repeat the process above.

 

7. Rinse sewage
This kind of sewage produces in the garment making industry, and garment cleaning industry, these sewage characteristic: COD and chromaticity is high, the alkalinity. It is a common profession in the Pearl River Delta area, and this type of sewage is very common. How to reduce the COD, chromaticity and alkalinity to acceptable level is a difficult problem, lower the COD is not difficult, but the hardest part is the chromaticity.  Many attempts to process this sewage, but its chromaticity remain high, emission this sewage directly pollute the environment greatly. One of our company products the highly effective purifying agent may solve this problem, moreover is shows good result in decolonization. 

While process this sewage, firstly reduce alkalinity, as its level is high, determines the PH value,  read of 11.7  alkalinity, add acid to adjust PH to 8.0 (actual production process is automatic control, does not require repeated adjustment like it is in the experiment), add our polymerization purifying agent (actual production it compose of a medicine dose) as these dose of medicament meta-acid, must therefore revise the PH value to 6 �C 9 (color of these water will be deepen during the process, pollutant polymerization), wait for 1 �C 2 minutes, than add flocculant (Most of the factories omission these sewage in the Pearl River Delta region, unable to process these sewage correctly, and our products able to assist most of these factories into the matter) stop agitation after 1 minute, wait for the flocculant to settle itself, (around 98 �C 99% chromaticity eliminated, effective decolorization, enable to have sufficient settling time. As the textile density is very small, their rate of descent is slow in water. There is enough time for subsidence during our experiment, moreover the dirt bed is high, therefore the density of the sewage is also high, to solve the COD after processing only require a simple filtration, otherwise the chromaticity already achieve the national first-level emission standard.

Finally continues with the filtration, as the impurity pollutant is high, but the water is quite limpid. Our polymerization purifying agent is the latest sewage processing material, it��s advantage is efficient, short reaction time. Our Medication can be adjust according to the density while emission, in order to save cost.

 

8. Electrical plate & circuits board sewage disposal
Sewage characteristic: sewage appears to be clear, high in heavy metal, our experiment sewage had 300mg/L of heavy metal, as this sewage appears to be pure water, it cause great damage to environment once it is emission. One of our product specific dealing with this type of sewage.

Determine its PH value first, PH reading is 4.0 Add alkali to adjust the PH value to 8 �C 9 (other medication adjust to 10 �C 11, doing so will increase the use of Sodium hydroxide or addition alkaline, thus increase cost) water will be darken after adding alkali, PH value around 9.0 can dose or product, wait for 10 �C 15 minutes, to be more efficient, add little Iron salt material during the reaction process after the reaction process add flocculant, stop agitation after 2 �C 3 minute, subsidence settle  and pollutant subside branch out the clear water, reuse or emission able after filtration.

 

9. Paper mill sewage
Paper making industry used large amount of water, convention ways of processing in biochemistry or aeration means. This processing time is very long and our products able to recycle these water quickly to save cost.

In actual process, we supply medical powder. For this experiment we throw in medicine, wait for 2 -3 minutes, aeration occurs in real situation, this widen the contact area, reduce reaction time, then add flocculant. (tret adjustment is base of the sewage density. Paper mill sewage had high density, COD can achieve as high as 2000mg/L, it therefore require large amount of medication to process, some factories lower the COD at two different stages. Our purifying agent, can be done all the process at once to achieves the basic emission standard, if some factories has biochemistry processing, the biochemistry pond rise bacteria which cost more and longer time).

After this process, lets the subsidence settle, filter after several minutes of subsides. (Our products able to lower the COD, and adjust the PH value, and separate out the fiber). To achieve the best result, in the shortest time and the lowest cost, the end-user can adjust the dose of medication base of the quantity and density of the sewage. After filter, the color of the processed sewage is much clear than the beginning, the COD reading is about 50 - 60 mg/L, achieve national emission standard.