1. A heliostat control system, comprising:
a receiver located within a receiver volume, the receiver configured to receive sunlight reflected from a mirror of a heliostat; and
a view port located proximate to the receiver volume, the view port optically connected to a camera, the camera configured to generate an image including pixels having a brightness dependent on an orientation of the mirror.
2. The heliostat control system of claim 1, wherein the view port is located within the receiver volume.
3. The heliostat control system of claim 1, wherein there are a plurality of heliostats, the receiver is configured to receive sunlight reflected from a mirror of each of the plurality of heliostats, and the image includes pixels having a brightness dependent on an orientation of each of the mirrors.
4. The heliostat control system of claim 1, further comprising a controller configured to receive the image from the camera and calculate an error in the orientation.
5. The heliostat control system of claim 4, wherein the controller is further configured to send a signal to change the orientation of the mirror based upon the determined error.
6. The heliostat control system of claim 4, wherein the controller is further configured to associate a portion of the image with the heliostat.
7. The heliostat control system of claim 1, further comprising a cooling system configured to cool the camera.
8. The heliostat control system of claim 1, wherein the camera is located in the receiver volume.
9. The heliostat control system of claim 1, wherein the camera is located outside of the receiver volume.
10. The heliostat control system of claim 9, further comprising a reflecting mirror configured to reflect sunlight away from the receiver after it has entered the view port.
11. The heliostat control system of claim 1, further comprising an optical filter configured to reduce the intensity of the sunlight after it has entered the view port.
12. The heliostat control system of claim 1, further comprising a shading layer configured to protect the camera from sunlight.
13. The heliostat control system of claim 1, further comprising optics configured to alter the sunlight.
14. The heliostat control system of claim 1, wherein there are a plurality of view ports, each view port optically connected to a corresponding camera.
15. The heliostat control system of claim 1, wherein the view port is configured to receive a portion of the sunlight that is received by the receiver.
16. A method of heliostat control, comprising:
receiving sunlight in a receiver, the sunlight reflected from a mirror of a heliostat;
generating an image from a camera, the camera optically connected to a view port located within the receiver; and
determining an error in an orientation of the mirror based upon the image.
17. The method of claim 16, wherein the sunlight is reflected from a plurality of mirrors, each mirror having a corresponding heliostat, and wherein determining comprises determining an error in an orientation of each of the mirrors.
18. The method of claim 16, wherein the error is determined based upon a brightness of a portion of the image.
19. The method of claim 16, further comprising sending a signal to change the orientation of the mirror based upon the determined error.
20. The method of claim 16, further comprising assigning a portion of the image to the heliostat.
21. The method of claim 16, further comprising cooling the camera with a cooling system.
22. The heliostat control system of claim 16, wherein determining comprises comparing images generated from a plurality of cameras.
23. The heliostat control system of claim 16, wherein determining comprises comparing the image with an expected image.
24. A method of heliostat control, comprising:
receiving sunlight in a receiver, the sunlight reflected from a mirror of a heliostat;
generating a first image from a camera located proximate to the receiver;
oscillating the heliostat at a known frequency; and
assigning a portion of the image to the heliostat by identifying the oscillation in the first image.
25. The method of claim 24, further comprising:
generating a second image from the camera;
locating in the second image the assigned portion; and
determining an error in an orientation of the mirror based upon the assigned portion.
26. The method of claim 25, further comprising sending a signal to change the orientation of the mirror based upon the determined error.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for removing contaminant of carbon and nitrogen from wastewater by using the heterotrophic ammonia oxidation bacteria (HAOB), comprising the following:
(A) Cultivation of HAOB activated sludge: seeding natural soils containing HAOB into substrates containing organic carbon and nitrogen andor inorganic ammonia nitrogen, and aerating in a reactor while keeping pH within the range of 6.5 and 8.5, wherein if the substrate contains ammonia nitrogen, organic carbon source is supplied in batches; stopping aeration when ammonia nitrogen concentration falls below 3 mgL and NO2\u2212\u2014N accumulation reaches maximum amount, maintaining an anoxic environment, and adding organic carbon source to allow denitrification to take place until the total of NO2\u2212\u2014N and NO3\u2212\u2014N concentrations are less than 1 mgL; and
(B) Removal of carbon and nitrogen from wastewater: seeding the activated sludge produced from (A) into a biological treatment reactor containing wastewater comprising organic carbon and nitrogen andor inorganic ammonia nitrogen, and aerating to allow the ammonia oxidation to take place, wherein if the wastewater does not contain organic carbon, additional organic carbon source is added into the reactor; and stopping aeration when nitrite has accumulated, maintaining an anoxic condition, and adding organic carbon source to allow denitrification to take place until no nitrite is present,
wherein the HAOB are heterotrophic bacteria which are able to carry out ammonification, ammonia oxidation and denitrification (reduction of nitrite and nitrate), and which have the following features: ability to grow on PM plate and score positive when Griess-Ilosvay reagent is directly applied; ability to directly oxidize ammonia into N2, NO2\u2212 or NO3\u2212 under aerobic conditions in presence of organic carbon source; and ability to remove nitrogen through denitrification with NO2\u2212 and NO3\u2212 as electron receptors and BOD as electron donor under either aerobic or anaerobic conditions.
2. The method according to claim 1, wherein highly active Bacillus pseudofirmus NH-2 (Accession No. CCTCC M203101) act as the dominating bacteria in the HAOB activated sludge.
3. The method according to claim 1, wherein highly active Arthrobacter globiformis WR-2 (Accession No. CCTCC M202043) act as the dominating bacteria in the HAOB activated sludge.
4. The method according to claim 1, wherein in (A) the cultivation of HAOB activated sludge is carried out at 20\u02dc40\xb0 C.
5. The method accordin to claim 1 wherein the N accumulation is in the range of 0.5\u02dc125 mgL in the ammonia oxidation of (B).
6. The method according to claim 5, wherein in (B) the ammonia oxidation and denitrification are repeated until the contaminant of carbon and nitrogen are removed from wastewater.
7. The method according to claim 1, wherein in (B) the ammonia oxidation and denitrification are repeated until the contaminant of carbon and nitrogen are removed from wastewater.
8. The method according to claim 1, wherein removal of carbon and nitrogen from wastewater described in (B) is carried out at 6\u02dc40\xb0 C.
9. The method according to claim 1, wherein the biological treatment reactor used in (B) is a suspended reactor, biofilm reactor, a single sequencing batch reactor, or continuous flow reactor, or their combinations.
10. The method according to claim 1, wherein the HAOB activated sludge is retained completely in the biological treatment reactor.
11. The method according to claim 1, wherein the biological treatment reactor is able to spontaneously achieve sludge-water separation; the wastewater having been treated is directly discharged from the biological treatment reactor.
12. The method according to claim 1, wherein the ammonia oxidation product is controlled by controlling the amount of organic carbon source in the biological treatment reactor under aerobic conditions.
13. The method according to claim 12, wherein, for 1 mole of ammonia oxidized in the biological treatment reactor under aerobic conditions, when the oxidation energy produced by the organic carbon source is 22 KJmol, the molar ratio of NO2\u2014N to NO2\u2212\u2014N is 58:42; when the oxidation energy is less than 22 KJmol the molar percentage of NO2\u2212\u2014N is in the range of 42%\u02dc99% among the ammonia oxidation products; when the oxidation energy exceeds 22 KJmol, the molarpercentage of NO2\u2014N is in the range of 58%\u02dc99% among the ammonia oxidation products.
14. The method according to claim 13, wherein the ammonia oxidation in (B) is controlled at the stage in which no accumulation of NO3\u2212\u2014N occurs.
15. The method according to claim 14, wherein the oxidation energy of organic carbon source in the biological treatment reactor under aerobic conditions exceeds 43.4 KJmol per mole of ammonia.
16. The method according to claim 1, wherein the method can be used to treat coke wastewater.